Officer ranks
| British Army and Royal Marines | RAF | Royal Navy |
|---|---|---|
|
Field Marshal (Army) Captain General (RM) |
Marshal of the Royal Air Force (MRAF) | Admiral of the Fleet |
| General (Gen.) | Air Chief Marshal (Air Chf Mshl) | Admiral (Adm) |
| Lieutenant‑General (Lt.Gen.) | Air Marshal (Air Mshl) | Vice‑Admiral (V.Adm.) |
| Major‑General (Maj.Gen.) | Air Vice‑Marshal (AVM) | Rear‑Admiral (R.Adm.) |
| Brigadier (Brig.) | Air Commodore (Air Cdre.) | Commodore (Cdre.) |
| Colonel (Col.) | Group Captain (Gp.Capt.) | Captain (Capt.) |
| Lieutenant‑Colonel (Lt.Col.) | Wing Commander (W/Cdr.) | Commander (Cdr.) |
| Major (Maj.) | Squadron Leader (Sqn.Ldr.) | Lieutenant‑Commander (Lt.Cdr.) |
| Captain (Capt.) | Flight Lieutenant (F/Lt.) | Lieutenant (Lt.) |
| Lieutenant (Lt.) | Flying Officer (F/O) | Sub‑Lieutenant (S.Lt.) |
| Second Lieutenant (2nd Lt.) | Pilot Officer (P/O) | Midshipman (Midsh.) |
| Officer Cadet (OCdt) | Officer Cadet (OC) | Officer Cadet (OCdt) |