| British and Dominion Navies
Glossary and Abbreviations |
| A/S | Anti-Submarine |
| B.C. | British Columbia (Canada) |
| Capt-i-C | Captain-in-Charge |
| CiC | Commander-in-Chief |
| (CSK) | Chief Store Keeper |
| (D. ...) | Captain, Commander, etc. (D). Officer in charge of destroyers
For example: Commander (D.3) is the commanding officer of the 3rd Destroyer Squadron |
| (E) | Engineer |
| Engr | Engineer |
| (F) | Flag |
| (FF) | Fleet or Flotilla Flag |
| FAA | Fleet Air Arm (Naval Aviation) |
| HMCS | His Majesty's Canadian Ship |
| HMIS | His Majesty's Indian Ship |
| HMS | His Majesty's Ship |
| HrMs | Royal Dutch Navy (Harer Majesteits) |
| KNM | Royal Norwegian Navy (Kongelig Norske Marine) |
| LCOCU | Landing Craft Obstacle Clearance* Unit (*also seen as Obstruction Clearing) |
| (N) | Naval |
| N.S. | Nova Scotia (Canada) |
| N.T. | Northern Territory (Australia) |
| N.S.W. | New South Wales (Australia) |
| Ont. | Ontario (Canada) |
| ORP | Ship or Officer of the Polish Navy (Okret Rzeczypospolitej Polskiej) |
| Payr | Paymaster |
| RAN | Royal Australian Navy |
| RCN | Royal Canadian Navy |
| RFA | Royal Fleet Auxiliary (vessels owned by the Admiralty, with Merchant Navy (i.e., civilian) crews under naval discipline, augmented with Royal Navy personnel) |
| RHN | Royal Hellenic Navy (Greece) |
| RIN | Royal Indian Navy |
| RM | Royal Marines |
| RN | Royal Navy |
| RNN | Royal Norwegian Navy |
| RNethN | Royal Netherlands Navy |
| RNR | Royal Navy Reserve |
| RNZN | Royal New Zealand Navy |
| S.A. | South Australia (Australia) |
| SO | Senior Officer |
| SNO | Senior Naval Officer |
| SOE | Special Operations Executive |
| S/S | Sailing Ship (mercantile vessel) |
| UK | United Kingdom |
| Ty | Temporary |