| # | Last Name | First Name | Initials | Rank | Regiment | Locality | Date of Death |
|---|---|---|---|---|---|---|---|
| 45409 | Oosthuizen | Daniel Jacobus (cmdt) | D J ( | Burgher | Boer Forces | 1901-10-26 | |
| 45410 | Oosthuizen | G.j. | G | Burgher | Boer Forces | 1901-03-21 | |
| 45411 | Oosthuizen | Cornelis G. | C G | Burgher | Pretoria Commando | 1900-02-07 | |
| 48443 | Oosthuizen | Ockert Andries | O A | Burgher | Prisoner of War | 1900-09-17 | |
| 48445 | Oosthuizen | Jacobus Ockert | J O | Burgher | Prisoner of War | 1900-04-23 | |
| 48599 | Oosthuizen | Peter William | P W | Bombardier | South African Artillery (Corps) | 1979-01-29 | |
| 19420 | Oosthuyse | Dietlof Jacobus | D J | Burgher | Mounted Commandos | Gauteng | 1915-03-20 |
| 19421 | Oosthuyse | Johan Bernard | J B | Private | South African Mounted Brigade Scouts | Mpumalanga | 1916-04-15 |
| 32396 | Oosthuyse | Hendrik Albertus | H A | Sergeant | 10 Anti Aircraft Regiment | Western Cape | 1983-12-18 |
| 32397 | Oosthuysen | Cornelis Ferreira | C F | Candidate Officer | South African Armoured Corps (Corps) | Free State | 1973-02-27 |
| 32398 | Oosthuysen | David Daniel | D D | Corporal | 2 South African Infantry Battalion | Free State | 1981-09-26 |
| 37075 | Op 't Hof | Alexcis Carinus | A C | Constable | Gauteng | 1942-06-25 | |
| 32399 | Openshaw | Roger Montague | R M | Pupil Pilot | South African Air Force (Corps) | Northern Cape | 1939-02-20 |
| 37076 | Openshaw | Arthur Hamilton | A H | Sergeant | Natal Police | KwaZulu-Natal | 1910-09-30 |
| 19428 | Opperman | Albert Stephen Abraham | A S A | Burgher | Mounted Commandos | Limpopo | 1914-11-25 |
| 19430 | Opperman | Daniel Jacobus Elardus | D J E | Burgher | Mounted Commandos | Gauteng | 1914-11-08 |
| 19432 | Opperman | Petrus Gerhardus | P G | Private | 9th Infantry (Prince of Wales' Own Regiment of Cape Peninsula Rifles) | Western Cape | 1918-10-17 |
| 19433 | Opperman | William | W | Leader | South African Native Labour Corps (Corps) | KwaZulu-Natal | 1917-04-24 |
| 32400 | Opperman | Andre Leon | A L | Second Lieutenant | 32 (Buffalo) Battalion | Gauteng | 1978-09-06 |
| 32401 | Opperman | Frederik Jacobus | F J | Warrant Officer Class I | 32 (Buffalo) Battalion | Gauteng | 1992-10-24 |
| 32402 | Opperman | George | G | Corporal | South African Medical Health Service | Gauteng | 1995-05-17 |
| 32403 | Opperman | Hercules Petrus | H P | Private | South African Technical Services Corps (Corps) | Gauteng | 1977-04-29 |
| 32404 | Opperman | Joseph Adriaan | J A | Rifleman | 3 South African Infantry Battalion | Gauteng | 1977-01-21 |
| 32405 | Opperman | William Haalsward | W H | Rifleman | 8 South African Infantry Battalion | Gauteng | 1986-11-24 |
| 37077 | Opperman | Pieter Johannes | P J | Constable | Free State | 1983-09-04 | |
| 43641 | Opperman | Burgher | Marico Commando | Unknown | |||
| 43642 | Opperman | Burgher | Boer Forces | 1900-01-09 | |||
| 45386 | Opperman | Jacobus Daniel (koot) Gen | J D ( G | Burgher | Wakkerstroom Commando | 1902-01-03 | |
| 45387 | Opperman | H.j.p. | H | Burgher | Bloemhof Commando | 1899-11-25 | |
| 45388 | Opperman | Johannes Petrus | J P | Burgher | Boer Forces | 1901-08-03 | |
| 45390 | Opperman | Daniel Jacobus | D J | Burgher | Potchefstroom | 1900-01-09 | |
| 32406 | Oram | Charles John | C J | Corporal | 5 Reconnaissance Regiment | Limpopo | 1987-01-31 |
| 19434 | Orchison | David W | D W | Second Lieutenant | South African Air Force (Corps) | Western Cape | 1945-01-09 |
| 19445 | Orgill | Claude Morris | C M | Able Seaman | South African Navy (Corps) | Western Cape | 1943-05-14 |
| 19446 | Orgill | J N | Private | Cape Corps | Western Cape | 1945-11-02 | |
| 19449 | Orme | William Henry | W H | Sergeant | South African Corps of Signals (Corps) | Gauteng | 1946-01-03 |
| 19450 | Orme-Spencer | Charles | C | Corporal | South African Engineer Corps (Corps) | Gauteng | 1942-10-17 |
| 19456 | Orpen | P B | Private | Cape Corps | Free State | 1942-02-04 | |
| 19459 | Orr | John | J | Private | 3rd South African Infantry | Western Cape | 1919-05-17 |
| 40739 | Orr | John | J | Commandant | 2 Squadron | Gauteng | 1990-03-28 |
| 45383 | Orsmond | W. G. | W G | Burgher | OFS Artillery Commando | 1899-11-23 | |
| 19468 | Ortlepp | Harold Arthur Roos | H A R | Second Lieutenant | 43 Squadron | Gauteng | 1942-01-23 |
| 32407 | Ortmann | Rolf Eduard | R E | Gunner | 10 Anti Aircraft Regiment | Gauteng | 1979-07-02 |
| 45381 | Osberg | Fredrik | F | Burgher | Scandinavian Corps Commando | 1899-12-11 | |
| 19482 | Osborne | Larry Edward | L E | Sergeant | South African Medical Corps (Corps) | Gauteng | 1943-02-28 |
| 32408 | Osborne | Nigel David | N D | Lieutenant | 19 Squadron | 1979-09-06 | |
| 19485 | Osendorp | David | D | Private | Indian and Malay Corps (Corps) | Gauteng | 1944-03-19 |
| 19488 | Osia | C | Private | South African Native Labour Corps (Corps) | KwaZulu-Natal | 1945-10-13 | |
| 32409 | Osler | F | Trooper | Bechuanaland Border Police | Gauteng | 1979-09-06 | |
| 37078 | Osmond | Arno | A | Gauteng | 1981-11-03 |