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Military
List of Abbreviations Used in Military Service Files
| Abbreviation | Meaning |
|---|---|
| C | Canadian |
| C | Censor |
| C | Commissioned |
| C | Company |
| C | Cook |
| C&A | Corrections & Amendments |
| C&AAA | Coast & Anti-Aircraft Artillery |
| C&AAATC | Coast & Anti-Aircraft Artillery Training Centre |
| C&P | Counselling and Probation |
| C&TC | Commissariat and Transport Corps |
| C&YR | Carleton & York Regiment |
| C(A)D(I)HU | Canadian (Armoured) Division (Infantry) Holding Unit |
| C(A)TBOW/SRCOC | Canadian (Army) Tank Brigade Ordnance Workshop, Royal Canadian Ordnance Corps |
| C(O)on"Q"L | Canadian (Officers) on "Q" List |
| C(W/T)V | Calibration (Wireless Telegraphy) Vessel |
| C,CACS | (Construction), Company Atlantic Command Signals |
| C/Blkmth | Chief Blacksmith |
| C/BTC | Canadian Base Training Centre |
| C/EA | Chief Electrical Artificer |
| C/ERA | Chief Engine Room Artificer |
| C/ERA(M) | Chief Engine Room Artificer (Mechanic) |
| C/Joiner | Chief Joiner |
| C/Mech | Chief Mechanic |
| C/MM | Chief Motor Mechanic |
| C/O | Commanding Officer |
| C/Plbr | Chief Plumber |
| C/Pntr | Chief Painter |
| C/PO(Postal) | Chief Petty Officer (Postal) |
| C/POCdr | Chief Petty Officer Coder |
| C/POCk | Chief Petty Officer Cook |
| C/POPhoto | Chief Petty Officer Photographer |
| C/POPtlmn | Chief Petty Officer Patrolman |
| C/POStwd | Chief Petty Officer Steward |
| C/POTel | Chief Petty Officer Telegraphist |
| C/POWtr | Chief Petty Officer Writer |
| C/RA | Chief Radio Artificer |
| C/Shpt | Chief Shipwright |
| C/SPO | Chief Stoker Petty Officer |
| C/Sto | Chief Stoker |
| C/Sto(FF) | Chief Stoker (Fire Fighter) |
| C1 | Chief Petty Officer 1st Class |
| C1Div | Clearance Diver |
| C2 | Chief Petty Officer 2nd Class |
| CA | Heavy Cruiser (U.S.) |
| CA | Canadian Army |
| CA | Control Armourer |
| CA"Y"F | Canadian Army British West Indies Force |
| CA&AA | Coastal Artillery and Anti-Aircraft |
| CA(A) | Canadian Army (Active) |
| CA(A)TC | Canadian Army (Advanced) Training Centre |
| CA(AF) | Canadian Army (Active Force) |
| CA(B)TC | Canadian Army (Basic) Training Centre |
| CA(M) | Canadian Army (Militia) |
| CA(NRMA) | Canadian Army (National Resources Mobilization Act of 1940) |
| CA(PF) | Canadian Army (Permanent Force) |
| CA(R) | Canadian Army (Regular) |
| CA(Res)or ® | Canadian Army (Reserve) |
| CA(RF) | Canadian Army (Reserve Force) |
| CA(RR) | Canadian Army (Regular Reserve) |
| CA(SF) | Canadian Army (Special Force) |
| CA/SA | Chief Anti-Submarine Artificer |
| CA/SEE | Captain, Anti-Submarine Experimental Establishment |
| CA/TKRPRCASC | Canadian Anti-Tank Regiment Platoon, Royal Canadian Army Service Corps |
| CA2PS | Canadian Army 2 Pounder School |
| CAAC | Crown Assets Allocation Committee |
| CAAF | Canadian Army Active Force |
| CAAORRCA | Canadian Anti-Aircraft Operations Room, Royal Canadian Artillery |
| CAAS | Canadian Army Administration School |
| CAB | Canadian Armoured Brigade |
| CAB | Canadian Army Band |
| CABC | Canadian Armoured Corps Band |
| CABCRCASC | Canadian Armoured Brigade Company, Royal Canadian Army Service Corps |
| CABOC | Canadian Armoured Brigade Ordnance Company |
| CABRR | Canadian Artillery Base Reinforcement Regiment |
| CABS | Canadian Armoured Brigade Signals |
| CABTCA&TS | Canadian Army Basic Training Centre Administrative and Training Staff |
| CABW/SRCEME | Canadian Advance Base Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CABW/SRCEME | Canadian Armoured Brigade Workshop, Royal Canadian Electrical and Mechanic Engineers |
| CAC | Canadian Armoured Corps |
| CAC(A)TC(CA) | Canadian Armoured Corps (Advanced) Training Centre (Canadian Army) |
| CACBTC | Canadian Armoured Corps Basic Training Centre |
| CACCRCASC | Canadian Army Car Company, Royal Canadian Army Service Corps |
| CACF | Commander Captain-in-Command, Araken Coastal Forcer |
| CACHU | Canadian Armoured Corps Holding Unit |
| CACOFP | Canadian Armoured Corps Ordnance Field Park |
| CACPRCASC | Canadian Army Catering Pool, Royal Canadian Army Service Corps |
| CACRU | Canadian Armoured Corps Reinforcement Unit |
| CACSCAC | Canadian Air Control Section, Canadian Armoured Corps |
| CACSqn | Coast Artillery Co-operation Squadron, (Royal Canadian Air Force) |
| CACTC | Canadian Armoured Corps Training Centre |
| CACTC(A) | Canadian Armoured Corps Training Centre (Active) |
| CACTCR | Canadian Armoured Corps Training Centre Reserve |
| CACTE | Canadian Armoured Corps Training Establishment |
| CACTR | Canadian Armoured Corps Training Regiment |
| CACTS | Canadian Armoured Corps Training Squadron |
| CACTSR | Canadian Armoured Corps Trained Soldiers Regiment |
| CACTU | Canadian Armoured Corps Training Unit |
| CADC | Canadian Army Dental Corps |
| Cadets | Cadet Services (Directorate of Military Training) |
| CADIS | Canadian Armoured Division Intelligence Section |
| CADMS | Canadian Advance Depot Medical Stores |
| CADOFPRCOC | Canadian Armoured Division Ordnance Field Park, Royal Canadian Ordnance Corps |
| CADPAT | Canadian Disruptive Pattern |
| CADPUCPC | Canadian Armoured Division Postal Unit, Canadian Postal Corps |
| CADR(ER)CAC | Canadian Armoured Delivery Regiment (Elgin Regiment), Canadian Armoured Corps |
| CADRCASC | Canadian Armoured Division, Royal Canadian Army Service Corps |
| CADRSSRCCS | Canadian Armoured Delivery Regiment Signal Section, Royal Canadian Corps of Signals |
| CADRTC | Canadian Armoured Division Reinforcement Transit Camp |
| CADSCDC | Canadian Army Dental Stores, Canadian Dental Corps |
| CADSGCRCASC | Canadian Armoured Divisional Support Group, Royal Canadian Army Service Corps |
| CADSP | Canadian Armoured Division Sub Park |
| CADTCRCASC | Canadian Armoured Division Transport Company, Royal Canadian Army Service Corps |
| CADTS | Canadian Armoured Division Training School |
| CADU | Canadian Army Demonstration Unit |
| CADW/SRCOC | Canadian Armoured Division Workshop, Royal Canadian Ordnance Corps |
| CAEBTC | Canadian Army Engineer Basic Training Centre |
| CAEC(B&NY) | Canadian Army Enlistment Centre (Boston and New York) |
| CAESU | Canadian Army Equipment Selection Unit |
| CAFAC | Commander, Allied Force, Aruba and Curacao (U.S.) |
| CAFHSRCAMC | Canadian Army Field Hygiene Section, Royal Canadian Army Medical Corps |
| CAFO | Confidential Admiralty Fleet Order |
| CAFRSSRCS | Canadian Army Field Regiment Signal Section, Royal Canadian Signals |
| CAFSS | Canadian Army Field Security Section |
| CAFVS | Canadian Armoured Fighting Vehicles School |
| CAFVTC | Canadian Armoured Fighting Vehicles Training Centre |
| CAG | Canadian Artillery Group |
| CAGRE | Commander, Army Group Royal Engineers |
| CAGS | Canadian Army Gymnastic Staff |
| CAHC | Canadian Army Hydrological Corps |
| CAHQDC(RMR) | Canadian Army headquarters Defence Company (Royal Montreal Regiment) |
| CAHU | Canadian Artillery Holding Unit |
| CAIB | Canadian Army Identification Bureau |
| CAIPCIC | Canadian Army Interrogation Pool, Canadian Infantry Corps |
| CAIS | Canadian Army Intelligence Section |
| CALE | Canadian Army Liaison Establishment |
| CalgH | Calgary Highlanders |
| CalgR | Calgary Regiment |
| CALO | Command Amenities Liaison Officer |
| CALS | Canadian Air Liaison Section |
| CAM | Catapult Aircraft Merchant Vessel |
| CAMB | Central Air Medical Board |
| CambR | Cambridgeshire Regiment |
| CAMBU | Canadian Army Mobile Bath Unit |
| CAMC | Canadian Army Medical Corps |
| CAMCTC | Canadian Army Medical Corps Training Centre |
| CA-MCURCAMC | Canadian Anti-Malaria Control nit, Royal Canadian Army Medical Corps |
| CAMMS | Canadian Army Motor Mechanic School |
| CamnHighs | Cameron Highlanders |
| CAMS | Catapult Aircraft Merchant Ships |
| CAMSI | Confidential Admiralty Merchant Shipping Instructions |
| Can | Canadian |
| Canavhed | Canadian Naval Headquarters |
| CanCav Bde | Canadian Calvary Brigade |
| CanCycBn | Canadian Cyclist Battalion |
| CanCyclistBn | Canadian Cyclist Battalion |
| Cand W | Cable and Wireless Company |
| CanDCyc | Canadian Divisional Cyclists |
| CanDivCav | Canadian Divisional Calvary |
| CanDivCyc | Canadian Divisional Cyclists |
| CanDivHQ | Canadian Divisional Headquarters |
| CanDivSig | Canadian Divisional Signals |
| CanEng | Canadian Engineers |
| CanFdArt | Canadian Field Artillery |
| CanForC | Canadian Forestry Corps |
| CanForGen | Canadian Forces General Order |
| CanFus | Canadian Fusiliers |
| CanHighComm | Canadian High Commissioner |
| CanHyBy | Canadian Heavy Battery |
| CanInfBde | Canadian Infantry Brigade |
| CanInfWksC | Canadian Infantry Works Corps |
| CanLabrBn | Canadian Labour Battalion |
| CanLH | Canadian Light Horse |
| CANMIL | Canadian Military Headquarters |
| CANMILITRY | Canadian Military Headquarters |
| CanMMGBde | Canadian Machine Gun Brigade |
| CanMtdRif | Canadian Mounted Rifles |
| CanordC | Canadian Ordnance Corps |
| CanPnrBn | Canadian Pioneer Battalion |
| CanPostalC | Canadian Postal Corps |
| CanRemtD | Canadian Remount Depot |
| CanRlyConsC | Canadian Railway Construction Corps |
| CanSanSec | Canadian Sanitary Section |
| CanScts | Canadian Scouts |
| CanSiberianExpFce | Canadian Siberian Expeditionary Force |
| CanTankC | Canadian Tank Corps |
| CAO | Command Account Officer |
| CAO | Canadian Army Order |
| CAO | Canadian Army Overseas |
| CAO (s) | Canadian Army Orders |
| CAOC | Canadian Army Ordnance Corps |
| CAOF | Canadian Army Occupation Force |
| CAOFP | Canadian Army Ordnance Field Park |
| CAOPS | Canadian Air Observation Post Squadron |
| CAORG | Canadian Army Operational Research Group |
| CAORO(s) | Canadian Army Overseas Routine Order(s) |
| CAP | Canadian Army Projectionist |
| CAP | Corps Ammunition Park Royal Canadian Army Service Corps |
| Cap | Captain |
| CAP | Common Army Phase |
| CAPC | Canadian Army Par Corps |
| CAPCRCAC | Canadian Armoured Personnel Carrier Regiment, Canadian Armoured Corps |
| CAPCRSTRCS | Canadian Armoured Personnel Carrier Regiment Signal Troop, Royal Canadian Signals |
| CAPF | Canadian Army Pacific Force |
| CapINF | Capitaine Infirmiere |
| CAPIS | Canadian Air Photo Interpretation Section, Canadian Intelligence Corps |
| CAPO | Canadian Army Post Office |
| CAPPUCIC | Canadian Army Photo Processing Unit, Canadian Intelligence Corps |
| CAPRCASC | Corps Ammunition Park Royal Canadian Army Service Corps |
| CAPS | Captain, Auxiliary Patrol, Scapa |
| CAPS | Canadian Army Pay Services |
| Capt | Captain |
| Capt(D) | Captain (Destroyers) |
| CAPTI/C | Captain-in-Charge |
| CAPTMLC | Captain, Major Landing Craft |
| CAPU | Canadian Army Postal Unit |
| CAR | Canadian Armoured Regiment |
| CAR | Canadian Army Representative |
| CAR | Carpenter |
| CAR | Canadian Airborne Regiment |
| CAR(CR) | Canadian Armoured Regiment (Calgary Regiment) |
| CARADSFR | Canadian Armoured Regiment Advance Details Sherbrooke Fusiliers Regiment |
| CARBRCA | Canadian Army Radar Battery Royal Canadian Artillery |
| CARC | Canadian Army Recovery Company |
| CARCRCOC | Canadian Army Recovery Company, Royal Canadian Ordnance Corp |
| CARD | Canadian Artillery Reinforcement Depot |
| CARDE | Canadian Armament Research Development Establishment |
| CareerTrg | Career Training |
| CARFTU | Canadian Artillery Reinforcement Unit |
| CARIB | Caribbean (U.S.) |
| CARIBSEAFRON | Caribbean Sea Frontier (U.S.) |
| CARNBH | Canadian Armoured Regiment New Brunswick Hussars |
| CARO(s) | Canadian Army Routine Order(s) |
| Carp | Carpenter |
| Carpr | Carpenter |
| CARR(GGHG) | Canadian Armoured Recce Regiment (Governor General's Horse Guards) |
| CARTC | Canadian Army Rehabilitation Training Centre |
| CartDmn | Cartographic Draughtsman |
| Cartymn | Chief Artilleryman |
| CARU | Canadian Artillery Reinforcement Unit |
| CAS | Canadian Administration School |
| CAS | Canadian Army Shows |
| CAS | Canadian Army Staff |
| CAS | Canadian Artillery School |
| CAS | Chief of the Air Staff |
| Cas | Casualty |
| CASC | Canadian Air Support Control |
| CASC | Canadian Army Service Corps |
| CASCIC | Censorship Advisory Section, Canadian Intelligence Corps |
| CASCRCE | Canadian Air Survey Company Royal Canadian Engineers |
| CASCRU | Canadian Army Service Corps Reinforcement Unit |
| CASDRCASC | Canadian Advance Stationary Depot, Royal Canadian Army Service Corps |
| CASEU | Canadian Auxiliary Service Entertainment Unit |
| CASF | Canadian Active Service Force |
| CASof I | Coast Artillery School of Instruction |
| CASofI | Canadian Army School of Instruction |
| CASS | Canadian Auxiliary Services Section |
| CASSU | Canadian Air Support Signal Unit |
| CASSURCCS | Canadian Air Support Signal Unit, Royal Canadian Corps of Signals |
| CATB | Canadian Army Tank Brigade |
| CATBCRCASC | Canadian Army Tank Brigade Company, Royal Canadian Army Service Corps |
| CATBHSC | Canadian Army Tank Brigade Heavy Support Company |
| CATBn | Canadian Army Tank Battalion |
| CATBS | Canadian Army Tank Brigade Signals |
| CATBSPRCOC | Canadian Army Tank Brigade Sub Park, Royal Canadian Ordnance Corps |
| CATC | Canadian Army Training Centre |
| CATCAC | Canadian Army Troop, Canadian Armoured Corps |
| CATCCRCASC | Canadian Assault Troops Composite Company, Royal Canadian Army Service Corps |
| CATCRCASC | Canadian Administrative Transport Company, Royal Canadian Army Service Corps |
| CATM | Canadian Army Training Memorandum |
| CATOFP | Canadian Army Tank Ordnance Field Park |
| CATR | Canadian Army Tank Regiment |
| CATS | Canadian Army Tank School |
| CATS | Canadian Army Training School |
| CATW/SRCOC | Canadian Armoured Troops Workshop, Royal Canadian Ordnance Corps |
| CAU | Civil Affairs Unit |
| CAU | Canadian Administration Unit |
| CAUC | Canadian Army University Course |
| Cav | Cavalry |
| CAVC | Canadian Army Veterinary Corps |
| CAW | Canadian Army Staff, Washington |
| CAWC | Canadian Artizan Works Company, Royal Canadian Engineers |
| CB | Order of the Bath (Companion) |
| CB | Coast Brigade |
| CB | Companion of the Order of the Bath |
| CB | Confined to Barracks |
| CB | Confidential Book |
| CB | Companion of the Order of the Bath |
| CBA | Canadian Broadcasting Corporation Broadcasting Station |
| CBBDB | Camp Borden Branch Detention Barracks |
| CBC | Canadian Broadcasting Corporation |
| CBD | Canadian Base Depot |
| CBD | Canadian Base Details |
| CBDC | Canadian Base Dental Company |
| CBDCMSC | Camp Borden Detachment, Corps of Military Staff Clerks |
| CBDMSRCAMC | Canadian Base Depot Medical Stores, Royal Canadian Army Medical Corps |
| CBDRCOC | Camp Borden Details, Royal Canadian Ordnance Corps |
| CBDSCDC | Canadian Base Dental Stores, Canadian Dental Corps |
| CBE | Order of the British Empire (Commander) |
| CBE | Commander of the Order of the British Empire |
| CBG | Canadian Brigade Group |
| CBH(RB) | Cape Breton Highlander (Rifle Battalion) |
| CBHQS | Camp Borden Headquarters Staff |
| CBMHRCAMC | Camp Borden Military Hospital, Royal Canadian Army Medical Corps |
| CBMHRCAMC | Coteau Barracks Military Hospital, Royal Canadian Army Medical Corps |
| CBMHRCAMC | Currie Barracks Military Hospital, Royal Canadian Army Medical Corps |
| CBOD | Canadian Base Ordnance Depot |
| CBOI(ACSRRCA) | Canadian Base Ordnance Increment (Attached Canadian Survey Regiment, Royal Canadian Artillery) |
| CBOSRCA | Counter Battery Officers Staff, Royal Canadian Artillery |
| CBOSRCACC | Counter Battery Officers Staff, Royal Canadian Artillery, Canadian Corps |
| CBOStaff | Counter Battery Officers Staff |
| CBOW/SRCOC | Canadian Base Ordnance Workshop, Royal Canadian Ordnance Corps |
| CBP | Canadian Base Park |
| CBPRCE | Canadian Base Park, Royal Canadian Engineers |
| CBRCA | Centaur Battery, Royal Canadian Artillery |
| CBRCA | Coast Battery, Royal Canadian Artillery |
| CBRD | Canadian Base Reinforcement Depot |
| CBRG | Canadian Base Reinforcement Group |
| CBRGSofCRCACS | Canadian Base Reinforcement Group School of Cookery, Royal Canadian Army Service Corps |
| CBSC | Canadian Base Staging Camp |
| CBSO | Counter Battery Staff Officer |
| CBSRCASC | Canadian Barracks Services, Royal Canadian Army Service Corps |
| CBSS(CMF) | Canadian Base Signal Section (Central Mediterranean Force) |
| CBSSRCCS | Camp Borden Signal Section, Royal Canadian Corps of Signals |
| CBTC | Canadian Base Transport Company |
| CBTD | Canadian Base Transit Depot |
| CBTPRCASC | Canadian Base Transport Platoon, Royal Canadian Army Service Corps |
| CBU | (Headquarters) Canadian Base Unit |
| CBUCCRCE | Canadian Base Units Construction Company, Royal Canadian Engineers |
| CC | Camouflage Course |
| CC | Camp Commandant Royal Canadian Air Force Headquarters |
| CC | Canadian Corps |
| CC | Cancellations & Corrections |
| CC | Chief Constructor |
| CC | Civil Convictions |
| CC | Clerk's Course |
| CC | Companion of the Order of Canada |
| CC | Conditioning Centre |
| CC | Communicator ( C ) |
| CC&A-AAS | Canadian Coast & Anti-Aircraft Artillery School |
| CC&ATSPRCOC | Canadian Corps & Army Troops Sub Park, Royal Canadian Ordnance Corps |
| CCAC | Canadian Casualty Assembly Centre |
| CCAS | Canadian Coast Artillery School |
| CCAS | S-1 Victoria |
| CCAS | S-2 Petawawa |
| CCB | Combined Communications Board |
| CCB | Canadian Calvary Brigade |
| CCB | Canadian Cyclist Battalion |
| CCBMGS | Canadian Cavalry Brigade Machine Gun Squadron |
| CCBPNo | Combined Communications Board, Publication Number |
| CCC | Canadian Construction Company |
| CCC | Casualty Clearing Centre |
| CCC | Commonwealth Communications Council |
| CCCC | Canadian Corps Composite Company |
| CCCC | Cape Colony Cyclist Corps |
| CCCCRCASC | Canadian Corps Car Company, Royal Canadian Army Service Corps |
| CCCRCE | Canadian Construction Company, Royal Canadian Engineers |
| CCCS | Captain (later Commodore) Commanding Canadian Ships and Establishments in the United Kingdom |
| CCCS | Canadian Casualty Clearing Station |
| CCCTRCASC | Canadian Command Corps Troops, Royal Canadian Army Service Corps |
| CCCU | Canadian Cemetery Construction Unit |
| CCD | Canadian Command Depot |
| CCD | Canadian Convalescent Depot |
| CCD | Canadian Corps Depot |
| CCDC | Canadian Corps Defence Company |
| CCDRCAMC | Canadian Convalescent Depot, Royal Canadian Army Medical Corps |
| CCDSSTRCCS | Canadian Corps Delivery Squadron Signal Troop, Royal Canadian Corps of Signals |
| CCDU | Coastal Command Development Unit |
| CCERCE | Canadian Constructional Engineers, Royal Canadian Engineers |
| CCF | Commander Coastal Forces |
| CCFC | Company Canadian Forestry Corps |
| CCFCORCAPC | Canadian Corps Field Cash Office, Royal Canadian Army Pay Corps |
| CCFPC | Canadian Corps Field Park Company |
| CCFPC | Canadian Corps Field Punishment Camp |
| CCHA | Canadian Corps Heavy Artillery |
| CCIS | Canadian Corps Intelligence Section |
| CCM | Canadian Centennial Medal (1967) |
| CCM | Combined Cypher Machine |
| CCM&HC | Canadian Courts Martial & Holding Centre |
| CCMA | Canadian Corps Medium Artillery |
| CCMHQSRCS | Company Canadian Military Headquarters Signals, Royal Canadian Signals |
| CCMOS | Canadian Counter Mortar Officers Staff |
| CCMOSRCA | Canadian Counter Mortar Officer Staff, Royal Canadian Artillery |
| CCMSRCA | Canadian Corps Meteorological Section, Royal Canadian Artillery |
| CCNF | Commodore Commanding Newfoundland Force |
| CCO | Chief of Combined Operations |
| CCO | Civilian Contracts Officer, Joint Air Training Plan |
| CCO | Coder and Cypher Office |
| CCO | Chief of Combined Operations |
| CCO | Communications, Coding and Cyphering Arrangements |
| CCOD | Canadian Central Ordnance Depot |
| CCOS | Combines Chiefs of Staff |
| CCP | Casualty Clearing Post |
| CCPC | Company Canadian Provost Corps |
| CCPPRCASC | Canadian Corps Petrol Park, Royal Canadian Army Service Corps |
| CCPS | Computerized Central Pay System |
| CCPU | Canadian Corps Postal Unit |
| CCPU | Canadian Corps Protective Company |
| CCR(C)A | Commander Corps Royal (Canadian) Artillery |
| CCRA | Commander, Corps Royal Artillery |
| CCRC | Canadian Corps Reinforcement Camp |
| CCRCAMC | Conditioning Centre, Royal Canadian Army Medical Corps |
| CCRCAMC | Composite Company, Royal Canadian Army Service Corps |
| CCRTC | Canadian Corps Reinforcement Transit Camp |
| CCRU | Canadian Combined Reinforcement Unit |
| CCS | Canadian Censor Section |
| CCS | Canadian Chaplain Services |
| CCS | Casualty Clearing Station |
| CCS | Code and Cypher School |
| CCS | Combined Chiefs of Staff |
| CCS | Casualty Clearing Station |
| CCSO | Contraband Control Service Officer |
| CCSRCCS | Canadian Cipher Section, Royal Canadian Corps of Signals |
| CCSRCS | Canadian Corps Signals, Royal Canadian Signals |
| CCT | Canadian Calibration Troop |
| CCTC | Canadian Corps Transport Company |
| CCTC | Commandant, Combined Training Centre |
| CCTCC | Canadian Corps Troops Carrying Column |
| CCTCCRCASC | Commander Corps Troops Carrying Column, Royal Canadian Army Service Corps |
| CCTORCOC | Canadian Corps Troops Ordnance, Royal Canadian Ordnance Corps |
| CCTSI | Canadian Corps Troops Service Increment |
| CCTW/SRCEME | Canadian Corps Troops Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CCTW/SRCOC | Canadian Corps troops Workshop, Royal Canadian Ordnance Corps |
| CCU | Canadian Concentration Unit |
| CCWAC | Company Canadian Women's Military Corps |
| CCWACMD | Company Canadian Women's Army Corps Military Corps |
| CCWDL | Canadian Chemical Warfare Defence Laboratory |
| CCWS | Canadian Chemical Warfare School |
| CCZ | Canadian Coastal Zone |
| CD | Canada Draft |
| CD | Canadian Forces Decoration |
| CD | Captain of the Dockyard |
| CD | Convalescent Detachments |
| CD | Clearance Diver |
| Cd | Commissioned |
| CD | Coast Defence (Artillery) |
| CD&AA | Coast Defence & Anti-Aircraft |
| CD&AAATC | Coast Defence & Anti-Aircraft Artillery Training Centre |
| CD&AAW/SS | Coast Defence & Anti-Aircraft Workshop Section |
| CD&EP | Canadian Defence & Employment Platoon |
| CD&FPB | Canadian Detention and Field Punishment Barracks |
| CD&MS | Canadian Driving and Maintenance School |
| CD(Records) | Correction on Documents |
| CDA | Canadian Divisional Artillery |
| CDAC | Canadian Divisional Ammunition Column |
| CDB | Canadian Detention Barracks |
| CDB | Coast Defence Battery |
| CDBPRCE | Canadian Divisional Bridging Platoon, Royal Canadian Engineers |
| CDC | Canadian Dental Corps |
| CDC | Canadian Disciplinary Centre |
| CDC | Canadian Divisional Calvary |
| CdCkO | Commissioned Cookery Officer |
| CDCRCE | Canadian Drilling Company, Royal Canadian Engineers |
| CdCtO | Commissioned Catering Officer |
| CDD | Canadian Discharge Depot |
| CDE | Code |
| CdeG | Croix de Guerre |
| CdeG(B) | Croix de Guerre Belgium |
| CdeG(F) | Croix de Guerre France |
| CdEl | Commissioned Electrician |
| CdEng | Commissioned Engineer |
| CdG'nr | Commissioner Gunner |
| CDHQ | Canadian Divisional Headquarters |
| CDIS | Canadian Division Intelligence Section |
| CDISRCASC | Canadian Detail Issue Depot, Royal Canadian Army Service Corps |
| CDLS | Canadian Defence Liaison Staff |
| CDMD | Canada Draft Military District |
| Cdn | Canadian |
| CdnConstlEngrs | Canadian Constructional Engineers |
| CdnDetnBks | Canadian Detention Barracks |
| CdnEngrs | Canadian Engineers |
| Cdn-Gds | Canadian Guards |
| CDOF | Colonie d'Afrique Occidentale Française |
| CDofDS | Canadian Depot of Dental Stores |
| CDOSC | Camp Daily Orders Sarcee Camp |
| CDOW/SRCOC | Canadian Divisional Ordnance Workshop, Royal Canadian Ordnance Corps |
| CDPU | Canadian Division Postal Unit |
| Cdr | Coder |
| Cdr | Commander |
| Cdr(D) | Commander (Destroyers) |
| CDRAS&TD | Canadian Detachment Royal Armoured Corps School & Training Depot |
| CDRBCAO/S | Canadian Division Reece Battalion, Canadian Army Overseas |
| CDRE | Commodore |
| CDRJ | Commander, Force J. |
| CDRSRCS | Canadian Despatch Rider Section Royal Canadian Signals |
| CDS | Canadian Divisional Signals |
| CDS | Chief of the Defence Staff |
| CDSB | Canadian Division Support Battalion |
| CDSB | Commissioned Signal Boatswain |
| CDSCCRC | Canadian Division Section - Canadian Corps Reinforcement Camp |
| CDSCDC | Central Dental Stores, Canadian Dental Corps |
| CDSCRCASC | Canadian Division Supply Company, Royal Canadian Army Service Corps |
| CdShpt | Commissioned Shipwright |
| CdSO | Commissioned Stores Officer |
| CDSRC | Canadian Division Section Reinforcement Camp |
| CDT | Commissioned Telegraphist |
| Cdt | Cadet |
| CDTCRCASC | Canadian Division Troops Company, Royal Canadian Army Service Corps |
| CdTelegr | Cadet Telegraphist |
| CDTS | Canadian Divisional Training School |
| CDVGofCCMHQ | General Duty Veterans Guard of Canada, Canadian Military Headquarters |
| CdWO | Commissioned Writer Officer |
| CE | Canadian Engineers |
| CE | Chief Engineer |
| CE | Civil Engineer |
| CE&MPRCE | Canadian Electrical & Mechanical Platoon, Royal Canadian Engineers |
| CE&MSRCE | Canadian Electrical & Mechanical Section, Royal Canadian Engineers |
| CE(Wks) | Chief Engineer (Works) |
| CEA | Chief Electrical Artificer |
| CEAURCOC | Canadian Equipment Assembly Unit, Royal Canadian Ordnance Corps |
| CEEW(A)RCEME | Canadian Engineer Equipment Workshop (Active), Royal Canadian Electrical and Mechanical Engineers |
| CEEW/SRCEME | Canadian Engineer Equipment Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CEEW/SRCOC | Canadian Engine Equipment Workshop, Royal Canadian Ordnance Corps |
| CEF | Canadian Expeditionary Force |
| CEG(B) | Canadian Employment Group "B" |
| CEHU | Canadian Engineer Holding Unit |
| CELE | Communication//Electronic Engineer |
| CEO | Camp Engineer Officer |
| CEO | Command Engineer Officer |
| CEP | Canadian Employment Platoon |
| CEPF | Canadian Echelon Pacific Force |
| CERA | Chief Engine Room Artificer |
| CERD | Canadian Engineer Reinforcement Depot |
| CERU | Canadian Engineer Reinforcement Unit |
| CESF | Commander, Eastern Sea Frontier (U.S.) |
| CESU | Canadian Educational Services Unit |
| CETC | Canadian Engineer Training Centre |
| CETech | Construction Engineering Technician |
| CEURCAMC | Canadian Exhaustion Unit, Royal Canadian Army Medical Corps |
| CeylonPLRC | Ceylon Planters Rifle Corps |
| CF | Canadian Fusiliers |
| CF | Composite Flights |
| CF | Canadian Forces |
| CF 98 | Canadian Forces Form #98 - Report on Injuries |
| CF&PS | Canadian Film and Photo Section |
| CF(SP)RRCA | Canadian Field (Self Propelled) Regiment, Royal Canadian Artillery |
| CFA | Canadian Field Ambulance |
| CFA | Canadian Field Artillery |
| CFA | Calvary Field Ambulance |
| CFA | Canadian Field Ambulance |
| CFAO | Canadian Forces Administrative Order |
| CFASS | Canadian Field Auxiliary Services Section |
| CFB | Coastal Force Base |
| CFBMEK | Coast Force Base, Mers-El-Kebir |
| CFBRCA(AF) | Canadian Field Battery, Royal Canadian Artillery, (Active Force) |
| CFC | Canadian Forestry Corps |
| CFC | Craftsman |
| CFC | Canadian Forces College |
| CFCCDRCE | Canadian Field Company, Canadian Division, Royal Canadian Engineers |
| CFCRCE | Canadian Field Company, Royal Canadian Engineers |
| CFCSC | Canadian Forces Command and Staff Course |
| CFCTW | Canadian Forestry Corps Training Wing |
| CFDS | Canadian Field Dressing Station |
| CFDSRCAMC | Canadian Field Dressing Station, Royal Canadian Army Medical Corps |
| CFE | Commander, Coastal Forces, Eastern Mediterranean |
| CFEF | Canadian Far East Force |
| CFES | Canadian Field Educational Section |
| CFF | Communication and Ferry Flights |
| CFF | Corps of Civilian (Canadian) Fire Fighters For Service in the United Kingdom |
| CFFS | Canadian Forces Fleet School |
| CFFT | Coastal Forces Fuelling Tender |
| CFH | Canadian Field Hospital |
| CFH | Canadian Forces Hospital |
| CFHA | Canadian Forces Housing Agency |
| CFHS | Canadian Field Historical Section |
| CFHSvcsGp | Canadian Forces Health Services Group |
| CFL | Compassionate Farm Leave |
| CFMG | Canadian Forces Medical Group |
| CFMSO | Coastal Forces Material Supply Officer |
| CFMTP | Canadian Forces Musician Training Plan |
| CFN | Canadian Forces in the Netherlands |
| CFN | Craftsman |
| Cfn | Craftsman (Royal Canadian Electrical and Mechanical Engineers) |
| CFN | Canadian Forces in the Netherlands |
| CFNIS | Canadian Forces National Investigation Service |
| CFOCS | Canadian Forces Officer Candidate School |
| CFORS | Course for Orderly Room Sergeants |
| CFP | Canadian Forces Publication |
| CFPAS | Canadian Forces Personnel Appraisal System |
| CFPC | Canadian Field Punishment Camp |
| CFPCRCE | Corps Field Park Company, Royal Canadian Engineers |
| CFPCUCIC | Canadian Field Press Censor Unit, Canadian Intelligence Corps |
| CFPSA | Canadian Forces Personnel Support Agency |
| CFR | Commissioning From the Ranks |
| CFRC | Canadian Forces Recruiting Centre |
| CFRETS | Canadian Forces Recruiting, Education and Training System |
| CFRP | Commissioning from the Ranks Plan |
| CFRRCAAP | Canadian Field Regiment, Royal Canadian Artillery, Advance Party |
| CFS | Canadian Field Squadron |
| CFS | Central Flying Schools |
| CFSC | Canadian Field Survey Company |
| CFSCRCE | Canadian Field Survey Company, Royal Canadian Engineers |
| CFSD | Canadian Forces Supply Depot |
| CFSEME | Canadian Forces School of Electrical and Mechanical Engineering |
| CFSRD | Canadian Field Security Reserve Detachment |
| CFSS | Canadian Field Security Section |
| CFSURCAMC | Canadian Field Surgical Unit, Royal Canadian Army Medical Corps |
| CFTC(ID)RCASC | Canadian General Transport Company (Infantry Division), Royal Canadian Army Service Corps |
| CFTO | Canadian Forces Technical Order |
| CFTSHQ | Canadian Forces Training System Headquarters |
| CFTU | Canadian Field Transfusion Unit |
| CFW | Commander, Coastal Forces, Western Mediterranean |
| CG | Commanding General (U.S.) |
| CG | Compassionate Grounds |
| CG | Coldsteam Guards |
| CG | Canada Gazette |
| CGA | Canadian Garrison Artillery |
| CGB | Canadian Garrison Battalion |
| CGBD | Canadian General Base Depot |
| CGBRB | Canadian General Base Reinforcement Battalion |
| CGCU | Canadian Graves Concentration Unit |
| Cgds | Coldstream Guards |
| CGG | Canadian Grenadier Guards (Now 22nd Armoured Regiment) |
| CGH | Canadian General Hospital |
| CGHRCAMC | Canadian General Hospital, Royal Canadian Army Medical Corps |
| CGHU | Canadian General Holding Unit |
| CGLS | Canadian General Labour Section |
| CGM | Conspicuous Gallantry Medal |
| CGMU | Combat Group Medical Unit |
| CGPC | Canadian General Pioneer Company |
| CGR | Canadian Garrison Regiment |
| CGR | Canadian Graves Registrar or Registration |
| CGRU | Canadian General Reinforcement Unit |
| CGRU | Canadian Graves Registration Unit |
| CGS | Canadian Government Ship |
| CGS | Chief of the General Staff |
| CGS | Chief of the Imperial General Staff |
| CGS | Canadian Government Ship |
| CGSF | Commander Gulf Sea Frontier |
| CGTC | Canadian General Transport Company |
| CGTWRCEME | Canadian General Troop Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CH | 14th Canadian Hussars |
| CH | Companion Of Honour |
| CH | Convalescent Hospital |
| CH | Construction Hand |
| CH | Companion of Honour |
| CH | Chaplain |
| CH | Chatham Division, Royal Marines |
| Chap | Chaplain |
| CHAP | Canadian Harassment and Abuse Prevention |
| Chap(F) | Chaplain of the Fleet |
| Chap(P) | Chaplain (Protestant) |
| Chap(RC) | Director of Chaplain Services (Roman Catholic) |
| CHB | Canadian Highland Battalion (Black Watch Royal Highland Regiment of Canada) |
| CHD | Calgary Highlanders Depot |
| CHENG | Chief Engineer |
| ChesR | Cheshire Regiment |
| ChesYeo | Cheshire Yeomanry |
| CHET | Canadian Higher Education Test |
| CHET | Canadian Higher Educational Test |
| ChO | Chief Officer |
| CHofO(MG) | Cameron Highlanders of Ottawa (Machine Gun) |
| CHOP | Line near 47th Meridian dividing the British and Canadian areas of responsibility |
| CHP | Chaplain (Protestant) |
| CHQ&NDHQCRCAMC | Corps Headquarters & National Defence Headquarters Company, Royal Canadian Army Medical Corps |
| CHQAGRCE | Canadian Headquarters Army Group, Royal Canadian Artillery |
| CHQCDC | Corps Headquarters, Canadian Dental Corps OR Canadian Disciplinary Centre |
| CHQCPC(C) | Corps Headquarters Canadian Postal Corps (Canada) |
| CHQCWAC | Corps Headquarters Canadian Women's Army Corps |
| CHQEOFSCRCOC | Corps Headquarters Element of Salvage Control, Royal Canadian Ordnance Corps |
| CHQofBSA | Canadian Headquarters of Base Sub Area |
| CHQPMC | Camp Headquarters, Petawawa Military Camp |
| CHQRCECA | Corps Headquarters Royal Canadian Engineers, Canadian Army |
| CHQRCEME | Corps Headquarters Royal Canadian Electrical and Mechanical Engineers |
| CHQRCOC | Corps Headquarters, Royal Canadian Ordnance Corps |
| CHQSDRCOC | Canadian Headquarters Salvage Depot, Royal Canadian Ordnance Corps |
| CHRA | Canadian Human Rights Act |
| CHRC | Chaplain Roman Catholic |
| CHRC | Canadian Human Rights Commission |
| CHRSRCEME | Canadian Heavy Recovery Section, Royal Canadian Electrical and Mechanical Engineers |
| CHRSRCOC | Canadian Heavy Recovery Section, Royal Canadian Ordnance Corps |
| CHS | Canadian Hospital Ship |
| CHSB | Chief Signal Botswain |
| CHSHPT | Chief Shipwright |
| ChSkr | Chief Skipper |
| CHT | Corps of Horse Transport |
| CHU | Canadian Holding Unit |
| CHWR | Chief Writer |
| CHYeoSIG | Chief Yeoman of Signals |
| CI(I)HQS | Canadian Intelligence (Interrogation) Headquarters Section |
| CIA | Chief Inspector of Armaments |
| CIAL | Commercial Cable Company |
| CIB | Canadian Infantry Brigade |
| CIBC | Canadian Infantry Corps Band |
| CIBCRCASC | Canadian Infantry Brigade Company, Royal Canadian Army Service Corps |
| CIBGDP(LS) | Canadian Light Infantry Brigade Ground Defence Platoon (Lorne Scot |
| CIBRB | Canadian Infantry Base Reinforcement Battalion |
| CIBSG(SLI) | Canadian Infantry Brigade Support Group (Saskatoon Light Infantry) |
| CIBUS | Communication Instructions for British Warships in the U.S.A. |
| CIBW/S | Canadian Infantry Brigade Workshop (Royal Canadian Ordnance Corps or Royal Canadian Electrical and Mechanical Engineers) |
| CIBW/SRCEME | Canadian Infantry Brigade Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CIBW/SRCOC | Canadian Infantry Brigade Workshop, Royal Canadian Ordnance Corps |
| CIC | Canadian Infantry Corps |
| CIC | Canadian Intelligence Corps |
| CIC | Cadet Instructor Cadre |
| CIDB | Canadian Infantry Depot Battalion |
| CIDBn | Canadian Infantry Depot Battalion |
| CIDCC(M)RCASC | Canadian Infantry Division Composite Company (Main), Royal Canadian Army Service Corps |
| CIDCMOS | Canadian Infantry Division Ordnance Field Park, Royal Canadian Ordnance Corps |
| CIDM/GBn(SLI) | Canadian Infantry Division Machine Gun Battalion (Saskatoon Light Infantry) |
| CIDOFPRCOC | Canadian Infantry Division Ordnance Field Park, Royal Canadian Ordnance Corps |
| CIDRTC | Canadian Infantry Division Reinforcement Transit Camp |
| CIDSI | Canadian Infantry Division Service Increment |
| CIDSPRCOC | Canadian Infantry Division Sub Park, Royal Canadian Ordnance Corps |
| CIDTCRCASC | Canadian Infantry Division Troops Company, Royal Canadian Army Service Corps |
| CIDTS | Canadian Infantry Division Training School |
| CIET | Canadian Intermediate Education Test |
| CIET | Canadian Intermediate Educational Test |
| CIF | "C" Infantry Battalion |
| CIGS | Chief of the Imperial General Staff |
| CIHU | Canadian Infantry Holding Unit |
| CIL | Cadet Instructors List |
| CIMGCoy(NBR) | Canadian Independent Machine Gun Company (New Brunswick Regiment) |
| Cin CCNA | Commander in Chief, Canadian North West Atlantic |
| CinC | Commander in Chief |
| C-in-C | Commander in Chief |
| CinC AandWI | Commander in Chief, Atlantic and West Indies Station |
| CinC,CNA | Commander in Chief, Canadian Northwest Atlantic |
| CinCCWA | Commander in Charge Canadian North Atlantic |
| CinCEF | Commander in Chief Eastern Fleet |
| CinCHF | Commander in Chief Home Fleet |
| CINCLANT | Commander in Chief, US Atlantic Fleet |
| CInfC | Canadian Infantry Corps |
| CIntC | Canadian Intelligence Corps |
| CIofCM | Chief Inspector of Catering & Messing |
| CIOSPRCOC | Canadian Infantry Ordnance Sub-Park, Royal Canadian Ordnance Corps |
| CIPCIC | Canadian Interpreters Pool, Canadian Infantry Corps |
| CIRU | Canadian Infantry Reinforcement Unit |
| CITB | Canadian Infantry Training Brigade |
| CITC | Canadian Infantry Training Centre |
| CITC | Canadian Infantry Centre |
| CItoanMTIBRCASC | Canadian Increment to a (Mobilization Training Centre / Mechanical Transport / Military Training OR Movement Train) Inspection Branch, Royal Canadian Army Service Corps |
| CITR | Canadian Infantry Training Regiment |
| CITW/SRCEME | Canadian Infantry Troops Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CITW/SRCOC | Canadian Infantry Troops Workshop, Royal Canadian ordnance corps |
| CIU | Clinical Investigation Units |
| CIWB | Canadian Infantry Works Battalion |
| CIWC | Canadian Infantry Works Corps |
| CJATC | Canadian Joint Air Training Centre (Rivers, Manitoba) |
| CJLS | Corps Junior Leaders School |
| CJWSC | Canadian Junior War Staff Course |
| CK | Cook |
| CK | Cook (Ship's) |
| Ck(O) | Cook (Officers) |
| Ck(Prob) | Cook (Probationer) |
| Ck(S) | Cook (Seamen) |
| CKMTE | Cook's Mate |
| CKS&DU | Canadian Kit Storage & Disposal Unit |
| CKSD | Canadian Kit Storage Depot |
| CL | Canloan List |
| CL | Compassionate Leave |
| CL | Convalescent Leave |
| Cl | Clasp |
| CL | Casualty List |
| CL | Colonel |
| CLA-AB | Canadian Light Anti-Aircraft Battalion |
| CLB | Canadian Labour Battalion |
| CLC | Canadian Leave Centre |
| CLDAFHQ | Canadian Liaison Detachment, Allied Forces OR Air Force Headquarters |
| CLE | Clerk |
| CLES | Canadian Legion Educational Service |
| CLFCSC | Canadian Land Force Command and Staff College |
| CLFHSRCAMC | Canadian Light Field Hygiene Sections, Royal Canadian Army Medical Corps |
| CLH | Canadian Light Horse |
| CLK | Clerk |
| ClkAcc | Clerk Accounting |
| ClkAdmSupr | Clerk Administrative Supervisor |
| ClkEng | Clerk Engineering |
| ClkGen | Clerk General |
| ClkStats | Clerk Statistics |
| ClkSteno | Clerk Stenographer |
| ClkTyp | Clerk Typist |
| Cloc | Chief Locator |
| CLofCPC(C) | Canadian Line of Communication Provost Company (Consolidated) |
| CLofCT | Canadian Line of Communication Terminal |
| CLP | Canadian Labour Pool |
| CLQ | Class Qualified |
| CLRSRCOC | Canadian Light Recovery Station, Royal Canadian Ordnance Corps |
| CLS | Chief of Land Staff |
| CL-SE | Color Sergeant |
| CLURCE | Canadian Landmark Unit, Royal Canadian Engineers |
| CLWS | Canadian Legion War Services |
| CM | Canadian Centennial Medal (1967) |
| CM | Member of the Order of Canada |
| CM | Commissaryman |
| CM | Communicator |
| CM/L | Controlled Mine Laying |
| CMA | Central Mediterranean Area |
| CMACRCASC | Canadian Motor Ambulance Convoy, Royal Canadian Army Service Corps |
| CMASCL | Canadian Military Attache Staff Canadian Legation |
| CMBG | Canadian Mechanized Brigade Group |
| CMBURCAMC | Canadian Mobile Bath Units, Royal Canadian Army Medical Corps |
| CMC | Canadian Medical Centre |
| CMC | Canadian Military College |
| CMCLG | Canadian Movement Control Liaison Group |
| CMCR(PLNBH)AF | Canadian Motorcycle Regiment (Princess Louise's New Brunswick Hussars) Active Force |
| CMCU | Canadian Movement Control Unit |
| CMDBSN | Commissioner Boatswain |
| CMDLondonMD1 | Central Mechanization Depot, Royal Canadian Ordnance Corps |
| Cmdr | Commander |
| Cmdr | Commander (Naval) |
| CMEC | Canadian Mechanical Equipment Company |
| CMF | Central Mediterranean Force |
| CMG | Order of St. Michael and St. George (Companion) |
| CMG | Companion of the Order of St Michael and St George |
| CMG | Canadian Medical Group |
| CMGBde | Canadian Machine Gun Brigade |
| CMGC | Canadian Machine Gun Corps |
| CMGCMF | Canadian Meteorological Group - Central Mediterranean Force |
| CMGHU | Canadian Machine Gun Holding Unit |
| CMGO | Corps Machine Gun Officer |
| CMGRU | Canadian Machine Gun Reinforcement Unit |
| CMGTC | Canadian Machine Gun Training Centre |
| CMH | Calgary Military Hospital |
| CMH | Canadian Military Hospital |
| CMHL | Canadian Mobile Hygiene Laboratory |
| CMHQ | Canadian Military Headquarters |
| CMHQC | Canadian Military Headquarters Course |
| CMHQROX-LPSOW | Canadian Military Headquarters Records Office X-List, PSOW |
| CMHRCAMC | Camp Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Camrose Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Charlottetown Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Chatham Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Chicoutimi Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Chilliwack Military Hospital, Royal Canadian Army Medical Hospital |
| CMHRCAMC | Cornwall Military Hospital, Royal Canadian Army Military Hospital |
| CMM | Order of Merit (Commander) |
| CMMG | Canadian Motor Machine Gun Brigade |
| CMMGC | Canadian Motor Machine Gun Corps |
| CMMP | Corps of Military Mounted Police |
| CMMS | Canadian Motorcycle Maintenance School |
| CMN-SURCAMC | Canadian Mobil Neuro-Surgical Unit, Royal Canadian Army Medical Corps |
| CMOS | Counter Mortar Officer Staff |
| CMP | Corps of Military Police |
| CMP&DB | Canadian Military Prison & Detention Barracks |
| CMPC | Canadian Military Police Corps |
| CMPLRCASC | Canadian Mobile Pet. Laboratories, Royal Canadian Army Service Corps |
| CMPS | Canadian Map Photographic Section |
| CMPS | Canadian Military Police Corps |
| CMR | Canadian Mounted Rifles |
| CMR | Collège militaire royal de Saint-Jean |
| CMR | Canadian Mounted Rifles |
| CMR | Cape Mounted Riflemen |
| CMR(GGHG)AF | Canadian Motorcycle Regiment (Governor General's Horse Guards) Active Force |
| CMRCASF(DYRCH) | Canadian Motorcycle Regiment, Canadian Active Service Force (17th Duke of York's Royal Canadian Hussars |
| CMRPRCASC | Canadian Medium Regiment Platoon, Royal Canadian Army Service Corps |
| CMRPRCASC | Canadian Medical Rest Station, Royal Canadian Army Medical Corps |
| CMRS | Canadian Medical Rest Station |
| CMS | Canadian Military Staff |
| CMS | Canadian Mission Staff |
| CMSA | Co-operations with the British Ministry of War Transport in the United States |
| CMSC | Corps of Military Clerks |
| CMSC | Corps of Military Staff Clerks |
| CMSC | Co-operations with the British Ministry of War Transport in Canada |
| CMSC | Cape Medical Staff Corps |
| CMSCCO | Corps of Military Staff, Clerks Corps Orders |
| CMSPEC | Canadian Military Section Port Executive Committee |
| CMSTMUSA | Camp Myles Standish, Tauton Massachusetts, U.S.A. |
| CMT | Corps of Motor Transport, Army Service Corps |
| CMTCCM | Canadian Militia Training Course, Camp Macauley |
| CMTech | Construction and Maintenance Technician |
| CMTRCA | Canadian Modelling Team, Royal Canadian Artillery |
| CMTRURCEME | Canadian Mobile Tire Repair Unit, Royal Canadian Electrical and Mechanical Engineers |
| CMTS | Central Mechanical Transport Stores |
| CMU | Construction and Maintenance Units |
| CNCoy | Cannon Company |
| Cnd | Canadian |
| CndDetnBks | Canadian Detention Barracks |
| CNDHQ | Commandant National Defence Headquarters |
| CNE | Canadian National Exhibition |
| CNEC | Chief Naval Engineering and Construction |
| CNES | Chief Naval Equipment and Supply |
| CNK | Change Next of Kin |
| CNMO | Canadian Naval Mission Overseas |
| CNO | Canadian Naval Order |
| CNP | Chief Naval Personnel |
| CNPWRCAMC | Canadian Neuro Psychiatric Wing, Royal Canadian Army Medical Corps |
| CNR | Canadian Naval Regulations |
| CNR | Canadian National Railways |
| CNS | Chief of Naval Staff |
| CNS | Chief of the Naval Staff |
| CNSRHRCAMC | Canadian Nursing Sister's Rest Home, Royal Canadian Army Medical Corps |
| CNVT&TU | Canadian Night Vision Training & Testing Unit |
| CNW-44 | Canadian Naval War Plan |
| CO | Commanding Officer |
| CO | Corps Orders |
| CO | Cook (Officer's) |
| CO | Constable |
| Co | Company |
| CO&MERU | Canadian Ordnance & Mechanical Engineer Reinforcement Unit |
| CO(A) | Camp Orders (Angler) |
| CO/SPD | Canadian Overseas Postal Depot |
| COA | Chief Ordnance Accountant |
| COA | Corps of Ordnance Artificers |
| COA | Course of Action |
| COAC | Commanding Officer Atlantic Coast |
| COAV | Commanding Officer Auxiliary Vessels |
| COBD | Canadian Ordnance Beach Detachment |
| COBD | Canadian Ordnance Branch Detachment |
| COC | Canadian Ordnance Corps |
| COC | Combined Operations Centre |
| COC&BTC | Combined Operations Centre & Basic Training Centre |
| COC(AC) | Combined Operations School (Army Camp) |
| COCDC | Corps Orders, Canadian Dental Corps |
| COCPC | Corps Orders Canadian Postal Corps |
| COCTC | Canadian Ordnance Corps Training Centre |
| COCTUSC | Canadian Officer Cadet Training Unit Selection Centre |
| COCWAC | Corps Orders, Canadian Women's Army Corps |
| COD | Central Ordnance Depot |
| CODCRCOC | Central Ordnance Depot Company, Royal Canadian Ordnance Corps |
| CODRCOC | Camp Ordnance Depot, Royal Canadian Ordnance Corps |
| COEMETC | Canadian Ordnance Electrical Mechanical Engineer Training Course |
| COF | Canadian Occupational Force |
| COF | Canadian Army Occupation Force |
| CofAS | Corps of Army Schoolmasters |
| CofC | Queen's Own Cameron Highlanders of Canada |
| CofF | Chaplain of the Fleet |
| CofHRS | Corps of Hussars |
| CofI | Court of Inquiry |
| CofLondYeo | County of London Yeomanry |
| CofLRS | Corps of Lancers |
| COFPRCOC | Canadian Ordnance Field Park, Royal Canadian Ordnance Corps |
| CofS | Chief of Staff |
| CofW | Cable or Wireless |
| COHQ | Combined Operations Headquarters |
| COI | Court of Inquiry |
| Col | Colonel |
| Coln | Column |
| Com | Command |
| COM | Commissioner |
| Com10thFleetCandR | Commander 10th Fleet Convoy and Routeing (US) |
| ComBtswn | Commissioned Boatswain |
| COMC&S | Canadian Ordnance Maintenance Company & Sections |
| Comd | Commander |
| Comd | Command |
| Comd | Commandant |
| Comd | Commanding |
| Com'd | Command |
| ComdEngr | Command Engineer |
| COMDGEN | Commanding General (U.S.) |
| Comdt | Commandant |
| COME | Chief Ordnance Mechanical Engineer |
| COMERU | Canadian Ordnance and Mechanical Engineer Reinforcement Unit |
| COMINCH | Commander in Chief, US Fleet |
| CominchCandR | Commander in Chief, US Fleet, Convoy and Routeing |
| Comm | Commission |
| Comm | Commodore |
| Commande (D) | Commander (Destroyers) |
| Commodore(D)WA | Commodore (Destroyers), Western Approaches |
| CommofCustoms | Commissioner of Customs |
| Comn | Communication |
| ComOp | Communications Operator |
| ComOpSupr | Communications Operator Supervisor |
| Comp | Composite |
| ComPC(A) | Communications Performance Checker (Air) |
| ComPC(G) | Communications Performance Checker (Ground) |
| ComTech | Communications Technician |
| ComTech(A) | Communications Technician (Air) |
| ComTech(G) | Communications Technician (Ground) |
| Conc | Concentrate |
| Conc | Concentration |
| COND | Commanding Officer Naval Divisions |
| Cond | Conductor |
| Condr | Conductor |
| Connav (No) | Navy Authority, Washington |
| ConnRang | Connaught Rangers |
| Const | Constable |
| Constl | Constructional |
| constr | construction |
| ConstrC | Constructor Captain |
| Conv | Convalescent |
| Convoy Sig | Convoy Signalman |
| ConvoyCYeoSigs | Convoy Chief Yeoman of Signals |
| ConvoyLSig | Convoy Leading Signalman |
| ConvoyOSig | Convoy Ordinary Signalman |
| ConvoyYeoSigs | Convoy Yeoman of Signals |
| Cook(O) | Cook (Officer's) |
| Cook(S) | Cook (Ship's) |
| COOS(M)RCOC | Canadian Ordnance Officer's Shop (Mobile), Royal Canadian Ordnance Corps |
| COP | Commander of Port |
| COPC | Commanding Officer Pacific Coast |
| COPC | Commanding Officer Pacific Coast |
| COPD | Canadian Overseas Postal Depot |
| COpSO | Chief Operational Services Officer |
| COR | Confirmation of Rank |
| Cor | Corvettes |
| CORC | Canadian Ordnance Railhead Company |
| CORCAMC | Corps Orders, Royal Canadian Army Medical Corps |
| CORCC | Canadian Overseas Railway Construction Corps |
| CORCRCOC | Canadian Ordnance Railhead Company, Royal Canadian Ordnance Company |
| CORCT | Canadian Overseas Railway Construction Troops |
| CORD | Commanding Officer Reserve Divisions |
| CORD | Commanding Officer Reserve Divisions |
| CORD | Central Ontario Regimental Depot |
| Corp | Corporal |
| Corpl | Corporal |
| CORU | Canadian Ordnance Reinforcement Unit |
| COS | Chief(s) of Staff |
| COS | Coming Off Strength |
| Cos | Companies |
| COS | Change of Strength |
| COS | Company Orderly Sergeant |
| COS&CB | Canadian Officers Survey & Classification Board |
| COSAI | Canadian Ordnance Stores Accounting Inspectorate |
| COSSAC | Chief of Staff to the Supreme Allied Commander (Designate) |
| COTC | Canadian Officer Training Centre |
| COTC | Canadian Officer Training Corps |
| COTC | Canadian Overseas Telecommunication Corporation |
| COU | Called Out Under |
| COVGOFC | Corps Orders Veterans Guard of Canada |
| Cox'n | Coxswain |
| Coy | Company |
| CP | Chaplains Pool |
| CP | Command Post |
| CPACRCAMC | Canadian Prophylactic Ablution Centre, Royal Canadian Army Medical Corps |
| CPB | Canadian Parachute Battalion |
| CPB | Canadian Pioneer Battalion |
| CPBRCE | Canadian Pioneer Battalion, Royal Canadian Engineers |
| CPC | Canadian Pension Commission (Department of Veterans Affairs) |
| CPC | Canadian Postal Corps |
| CPC | Canadian Provost Corps |
| CPC | Corps Protection Company |
| CPCCMF(ADHOC) | Canadian Pioneer Company, Central Mediterranean Force |
| CPCD | Canadian Provost Corps Depot |
| CPCO/S(PU) | Canadian Postal Corps Overseas, (Postal Units) |
| CPCURCASC | Canadian Port Clearance Unit, Royal Canadian Army Service Corps |
| CPDPRCE | Canadian Pile Driving Platoon, Royal Canadian Engineers |
| CPDRCAPC | Command Pay Detachment, Royal Canadian Army Pay Corps |
| CPF | Canadian Patriotic Front |
| CPI | Corps of Permanent Instructors |
| CPinME | Canadian Personnel in Middle East |
| Cpl | Corporal |
| CPLAM | Corporal Ambulance |
| CPMH | Camp Petawawa Military Hospital |
| CPMHRCAMC | Chorley Park Military Hospital, Royal Canadian Army Medical Corps |
| CPMMLRCOC | Canadian Pilot Model Mobile Laundry, Royal Canadian Ordnance Corps |
| CPO | Chief Petty Officer |
| CPO | Civilian Personnel Officer (Air) |
| CPR | Canadian Pacific Railway |
| CPRD | Canadian Public Relations Detachment |
| CProC | Canadian Provost Corps |
| CPRS | Canadian Public Relations Services |
| CPRU | Canadian Public Relations Unit |
| CPS | Canadian Planning Staff |
| CPS | Canadian Publishing Section |
| Cpt | Captain |
| CPTC | Canadian Parachute Training Centre |
| CPTCAC | Canadian Pioneer Troop, Canadian Armoured Corps |
| CPTHO | Captain of Hospital Orderlies |
| CPTRE | Captain Royal Engineers |
| CPTU | Canadian Parachute Training Unit |
| CPTUCPC | Canadian Postal Tracing Unit, Canadian Postal Corps |
| CPW/S(ADHOC)RCEME | Canadian Port Workshop (Ad Hoc), Royal Canadian Electrical and Mechanical Engineers |
| CPW/S(ADHOC)RCOC | Canadian Port Workshop (Ad Hoc), Royal Canadian Ordnance Corps |
| CPWEU | Canadian Petroleum Warfare Experimental Unit |
| CQMS | Company Quartermaster-Sergeant |
| CR | Central Registry |
| CR | Chaudiere Regiment |
| CR | Confirmation of Rank |
| CR | Control Ratings |
| CR | Control Rate |
| Cr | Commander |
| CR | Control Rating |
| CR | Central Registry |
| CR(C)E | Commander, Royal (Canadian) Engineers |
| CR(T) | Calgary Unit (Tank) |
| CR/AC | Canadian Re-allocation Centre |
| CRA | Compulsory Retirement Age |
| CRA | Commander, Royal Artillery |
| CRA | Commanding Royal Artillery |
| CRASC | Commander, Royal Army Service Corps |
| CRB | Canadian Rifle Battalion |
| CRB | Career Review Board |
| CRB(M) | Career Review Board (Medical) |
| CRBRCA | Canadian Rocket Battery, Royal Canadian Artillery |
| CRBW/SRCEME | Canadian Radar Battery Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CRC | Canadian Reception Camp |
| CRC | Casualty Retraining Centre |
| CRC | Chief Registration Clerk |
| CRCAMC | Company Royal Canadian Army Medical Corps |
| CRCASCATBC | Company Royal Canadian Army Service Army Tank Brigade Company |
| CRCASCATBC | Company Royal Canadian Army Service Corps |
| CRCC | Canadian Road Construction Company |
| CRCC | Canadian Railway Construction Corps |
| CRCE | Company Royal Canadian Engineers |
| CRCE(PB) | Commander Royal Canadian Engineers (Permanent Bridges) |
| CRCE(W) | Commander Royal Canadian Engineers (Works) |
| CRCEME | Company Royal Canadian Electrical and Mechanical Engineers |
| CRCL | Canadian Red Cross List |
| CRCORU | Canadian Royal Canadian Ordnance Corps Reinforcement Unit |
| CRCR | Canadian Reserve Calvary Regiment |
| CRCRCAMC | Casualty Retraining Centre, Royal Canadian Army Medical Corps |
| CRCRCEME | Canadian Recovery Company, Royal Canadian Electrical and Mechanical Engineers |
| CRCRCOC | Canadian Recovery Company, Royal Canadian Ordnance Corps |
| CRD | Canadian Reception Depot |
| CRD | Canadian Remount Depot |
| CRD(LS) | Canadian Repatriation Depot (LS) |
| CRDFT(S)C | Canadian Radio Detection Finder Training (School) Centre |
| CRDFTC | Canadian Radio Direction Finder Training Centre |
| CRE | Commanding Royal Engineers |
| CRecs | Controller of Records (Air) |
| CREME | Commander Royal Electrical and Mechanical Engineers |
| CRFTTC | Canadian Reinforcement Transit Camp |
| CRGTPRCASC | Canadian Reinforcement Group Transit Platoon, Royal Canadian Army Service Corps |
| CRGWP | Canadian Reinforcement Group Transit Platoon |
| CRI | Chinese Regiment of Infantry |
| CRLE | Canadian Radio Location Establishment |
| Crmn | Crewman |
| CRN | Change Regimental Number |
| CRO | Corps Reserve of Officers |
| CRO | Officer in Charge Central Registry |
| CRO | Chief Recruiting Officer |
| CRO | Canadian Records Office |
| CROCRCE | Canadian Railway Operation Company, Royal Canadian Engineers |
| Crpl | Corporal |
| CRR(PLDG) | Canadian Reconnaissance Regiment (Princess Louise Dragoon Guards) |
| CRRCA | Coast regiment, Royal Canadian Artillery |
| CRS | Canadian Recce Squadron |
| CRS | Central Recruiting Troop |
| CRS | Captured Records Section (US Dept of the Army) |
| CRS-CIB | Canadian Recce Squadron-Canadian Infantry Brigade |
| CrStGeo | Cross of Saint George (Russia) |
| CRT | Canadian Railway Troop |
| CRT | Continuous Reserve Training |
| CRT | Canadian Railway Troops |
| CRTC | Canadian Radar Training Centre |
| CRTC(A) | Canadian Reconnaissance Training Centre (Active) |
| CRTC(R) | Canadian Reconnaissance Training Centre (Reserve) |
| CRU | Canadian Reinforcement Unit |
| CRUPU | Canadian Reinforcement Units Postal Units |
| CRURCA | Canadian Rocket Unit, Royal Canadian Artillery |
| Crypto | Cryptographer |
| CS | Christian Science (Church) |
| CS | Cypher Section |
| CS | Commandant Staff |
| CS | Cease |
| CS | Communicator (Ship's) |
| CS | Communicator (Supplementary) |
| CS&AC | Canadian Selection & Appraisal Centre |
| CS&TO | Camp Supply & Transport Officer |
| CS(No) | Admiralty File Number |
| CSA | Canadian Small Arms |
| CSA | Consular Shipping Adviser |
| CSAFVIRCEME | Canadian Section Armoured Fighting Vehicles Inspectorate, Royal Canadian Electrical and Mechanical Engineers |
| CSAFVTS | Canadian Section Armoured Fighting Vehicles Technical Staff |
| CSAI | Canadian School of Army Instruction |
| CSAS(E) | Canadian Small Arms School (Eastern) |
| CSAS(WC) | Canadian Small Arms School (Western Canada) |
| CSATC | Canadian Small Arms Training Centre |
| CSB | Canadian Shipping Board |
| CSBASRAC | Canadian Special BASRA Company |
| CSBD | Canadian Special Base Depot |
| CSC | Cadet Services of Canada |
| CSC | Canadian Service College |
| CSC | Chiefs of Staff Committee |
| CSC | Corporal Signal Corps |
| CSC | Commissariat Staff Corps |
| CSCC | Canadian Section Claims Commission |
| CScotR | Canadian Scottish Regiment |
| CSCRCOC | Canadian Salvage Corps, Royal Canadian Ordnance Corps |
| CSDS | Canadian Special Driving School |
| CSE | Color Sergeant |
| CSEAFHQ | Canadian Section Echelon Allied Forces, Headquarters |
| CSEC | Canadian Special Employment Company |
| CSEE | Canadian Signals Experimental Establishment |
| CSEF | Canadian Siberian Expeditionary Force |
| CSG | Clerk Stenographer Group |
| CSGHQ2ndEch | Canadian Section General Headquarters, 2nd Echelon |
| CSGHQE | Canadian Section General Headquarters Echelon |
| CSgt | Colour Sergeant |
| CSHQBGNR | Canadian Section Headquarters, Brussels, GRN |
| CSHQCC | Cypher Section Headquarters Canadian Corps |
| CSI | Companion of the Star of India |
| CSIB | Canadian Special Infantry Battalion |
| CSIC | Canadian Special Infantry Company |
| CSICoy | Canadian Special Infantry Company |
| CSIS | Canadian Security and Intelligence Service |
| CSKSU | Canadian Surplus Kit Storage Unit |
| CSM | Company Sergeant Major |
| CSME | Canadian School of Military Engineering |
| CSMH | Christie Street Military Hospital |
| CSO | Chief Signal Officer |
| CSofA | Canadian School of Artillery |
| CSofAA | Canadian School of Army Administration |
| CSofI | Canadian School of Infantry |
| CSOI | Commandant School of Instruction |
| CSOR | Chief Staff Officer Reserves |
| Csr | Cruiser |
| CSR&DE | Canadian Signals Research & Development Establishment |
| CSR(MG) | Canadian Scottish Regiment (Machine Gun) |
| CSRCCS | Construction Section, Royal Canadian Corps of Signals |
| CSRU | Canadian Signals Reinforcement Unit |
| CSSB | Canadian Special Service Battalion |
| CSSCRCOC | Canadian Special Stores Company, Royal Canadian Ordnance Corps |
| CSSD | Canadian Special Salvage Detachment |
| CSTC | Canadian Signal Training Centre |
| CSTech | Communications Systems Technician |
| CSTTB | Canadian Standing Trades Test Board |
| CSTV | Coil Skids Towing Vessel |
| CSupt | Commodore Superintendant |
| CSURCEME | Canadian Servicing Unit, Royal Canadian Electrical and Mechanical Engineers |
| CSURCOC | Canadian Salvage Units, Royal Canadian Ordnance Corps |
| CSV | Camp Staff Volunteer |
| CSWSTRCCS | Canadian Shock Wave Section Type, Royal Canadian Signals Corps |
| CSWTS | Canadian Section Weapons Technical Staff |
| CT | Communication Trench |
| CT | Component Transfer |
| CT(CFC)TC | Camp Tremblay (Canadian Forestry Corps) Training Centre |
| CTA | Canadian Troop Aldershot |
| CTACRCASC | Corps Troop Ammunition Company, Royal Canadian Army Service Corps |
| CTC | Canadian Transit Camp |
| CTC | Canadian Troops Colchester |
| CTC | Canadian Tank Corps |
| CTC(TB)CPC | Canadian Tobacco Depot (Type B), CPC (see above for various meanings of CPC) |
| CTCRCE | Canadian Tunnelling Company, Royal Canadian Engineers |
| CTCSPCProC | Canadian Traffic Control Section Provost, Canadian Provost Corps |
| CTCURCACMF | Canadian Traffic Control Unit, Royal Canadian Artillery, Central Mediterranean Force |
| CTCW | Canadian Transit Camp Wing |
| CTD | Canadian Training Division |
| CTDCPC | Canadian Tobacco Depot, CPC (see above for various meanings of CPC) |
| CTDS(ER) | Canadian Tank Delivery Squadron (Elgin Regiment) |
| CTDSSD | Canadian Tank Delivery Squadron Signals Detachment |
| CTDUCAC | Canadian Tank Demonstration Unit, Canadian Armoured Corps |
| CTF | Commander Task Force |
| CTFARCAMC | Canadian Training Field Ambulance, Royal Canadian Army Medical Corps |
| CTH | Canadian Troops Hereford |
| CTLC | Canadian Technical Liaison Group |
| CTMU | Canadian Town Major Unit |
| CtnAsst | Canteen Assistant |
| CtnMngr | Canteen Manager |
| CTO | Central Telegraph Office |
| CTO | Chief Treasury Officer |
| CTO(N) | Chief Treasury Officer (Navy) |
| CTOO/S | Canadian Treasury Office Overseas |
| CTP | Canadian Transport Platoon |
| CTP | Course Training Plan |
| CTPCRCASC | Corps Troops Petrol Company, Royal Canadian Army Service Corps |
| CTPRCASC | Canadian Tipper Platoon, Royal Canadian Army Service Corps |
| CTPRCASC | Canadian Transport Platoon, Royal Canadian Army Service Corps |
| CTps | Corps Troops |
| CTRCA | Calibration Troop, Royal Canadian Artillery |
| CtRep | Court Reporter |
| CTS | Canadian Training School |
| CTS | Composite Training School |
| CTS | Conversion Training Squadron |
| CTS | Clothe the Soldier |
| CTSC | Corps Troops Supply Column |
| CTSCRCASC | Corps Troop Supply Column, Royal Canadian Army Service Corps |
| CTTC | Canadian Tank Transport Company |
| cttee | Committee |
| CTTW/SRCEME | Canadian Tank Troops Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CTTW/SRCOC | Canadian Tank Troops Workshop, Royal Canadian Ordnance Corps |
| CTU | Commander Task Unit (U.S.) |
| CU | Camp Utopia |
| CU | Conducting Unit |
| CU | Caribbean-United Kingdom Convoy |
| CU | Conversion Unit |
| CUNEF | Canadian Component United Nations Emergency Force (Middle East) |
| CUS | Course (U.S.) |
| CUT | Cutter (U.S.) |
| CV | Aircraft Carrier (U.S.) |
| CV | Cross of Valour |
| CV | Communicator (V) |
| CVA&CG | Canadian Vehicle Assembly & Control Group |
| CVD | Commercial Vessel Defensive |
| CVDTURCAMC | Canadian Venereal Disease Treatment Unit, Royal Canadian Army Medical Corps |
| CVE | Auxiliary Aircraft Carrier (U.S.) |
| CVE | Carrier Vessel Escort |
| CVHGCASF | Company Veterans Home Guard, Canadian Active Service Force |
| CVIRCEME | Canadian Vehicle Inspectorate, Royal Canadian Electrical and Mechanical Engineers |
| CVO | Royal Victorian Order (Commander) |
| CVO | Commander of the Royal Victorian Order |
| CVP | Convoy Programme |
| CVSM | Canadian Volunteer Service Medal |
| CVWS | Canadian Vehicle Waterproofing School |
| CW | Communicator (W) |
| CW | Chemical Warfare |
| CW | Commissioned Warrant |
| CW(No) | Admiralty Record Office File |
| CW/S&PC | Canadian Workshop and Park Company |
| CWAAF | Canadian Women's Auxiliary Air Force |
| CWAC | Canadian Women's Army Corps |
| CWACBTC | Canadian Women's Army Corps, Basic Training Centre |
| CWACCS | Canadian Women's Army Corps, Composite Stores |
| CWACDO | Canadian Women's Army Corps, District Orders |
| CWACMB | Canadian Women's Army Corps, Military Band |
| CWACO | Canadian Women's Army Corps, Ottawa |
| CWACPB | Canadian Women's Army Corps, Pipe Band |
| CWACTC | Canadian Women's Army Corps, Training Centre |
| CWB | Canadian Wives Bureau |
| CWC | Chemical Warfare Course |
| CWDL | Chemical Warfare Defence Laboratory |
| CWGC | Commonwealth War Graves Commission |
| CWL | Chemical Warfare Laboratories |
| CWM | Canadian War Museum |
| CWNS | Canadian War Narrative Section |
| CWRO | Canadian War Records Office |
| CWS(IC) | Canadian Wireless Section (Intelligence Corps) |
| CWSF | Commander Western Sea Frontier |
| CWSRCE | Canadian Works Section, Royal Canadian Engineers |
| CWTC | Chemical Warfare Training Centre |
| CWTD | Cold Weather Test Trail Detachment |
| CWTV | Calibration Wireless Telegraph Vessel |
| CXO | Chief Examination Officer |
| Cy | Company |
| Cyc | Cyclist |
| CYS | Chief Yeoman of Signals |
| CZ | Canal Zone (Panama) (U.S.) |
| CZ | Clyde Division - Royal Naval Volunteer Reserve |
| CZT | Civil Zone Time |
