| naam | geboren | overleden | leeftijd | e.v. | opmerking | aanduiding |
|---|
| Gordon Leonard Olsen | 1922 | 17-08-1941 | 19 | | Sergeant*Pilot / Royal Canadian Air Force | 20f-05 |
| Glyndwr Owens | 1915 | 08-07-1941 | 26 | | Sergeant*Pilot / Royal Air Force Volunteer Reserve | 20g-05 |
| Edward Oakes | 1918 | 16-05-1941 | 22 | | Sergeant*W.Op.-Air Gnr / RAF Volunteer Reserve | 03h-05 |
| Joseph Leonard O'Grady | 1920 | 05-10-1942 | 22 | | Flight Sergeant*Air Observer / R.Canadian A.Force | 20c-02 |
| William Orange | | 02-10-1942 | | | Flight Sergeant*Air Gunner/ RAF Volunteer Reserve | 20d-08 |
| Paul Thomas Cyril Oldham | 1923 | 14-02-1943 | 19 | | Sergeant*Flight Engineer / Royal Air Force | 08i-03 |
| Douglas Gordon Miles Ofield | | 15-06-1943 | | | Sergeant*Air Gunner/ RAF Volunteer Reserve | 16a-06 |
| Frank Oades | 1920 | 25-10-1944 | 24 | | Gunner / Royal Artillery | 01f-03 |
| John Overthrow | 1926 | 13-11-1944 | 18 | | Private / Duke of Cornwall's Light Infantry | 10e-07 |
| Frederick Kenneth Oaten | 1926 | 28-10-1944 | 18 | | Private / Hampshire Regiment | 15c-01 |
| Ronald Victor Otto | 1918 | 02-10-1944 | 26 | | Sapper / Royal Engineers | 04b-04 |
| Harry Edward Oughton | 1914 | 04-10-1944 | 30 | | Lance Serjeant / Hampshire Regiment | 05c-02 |
| Nicholas O'Loughlin | 1917 | 07-11-1944 | 27 | | Private / Pioneer Corps | 06f-08 |
| Patrick Joseph Anthony O'Callaghan | 1921 | 22-05-1944 | 22 | | Sergeant*Air Gunner/ RAF Volunteer Reserve | 08e-09 |
| Thomas C. O'Neill | | 20-09-1944 | | | Lance Serjeant / Irish Guards | 18b-04 |
| Wallace Edgar Osmond | 1922 | 19-11-1944 | 22 | | Pilot Officer / Royal Australian Air Force | 20a-05 |
| Thomas Joseph O'Reilly | 1920 | 14-10-1944 | 24 | | Private / Welch Regiment | 09d-03 |
| Fred Glen Oakes | 1924 | 21-07-1944 | 20 | | Warrant Officer Class II*Air Bomber/ R. Can. A.F. | 24i-05 |
| Richard Michael Owtram | 1921 | 15-02-1945 | 23 | | Guardsman / Irish Guards | 22f-03 |
| Raymond George Oakley | 1926 | 03-01-1945 | 18 | | Private / Monmouthshire Regiment | 15e-08 |
| Ronald Onions | 1923 | 08-02-1945 | 21 | | Gunner / Royal Artillery | 17e-02 |
| Patrick O'Callaghan | 1913 | 17-01-1945 | 31 | | Corporal / Leicestershire Regiment | 23g-03 |