| # | Last Name | First Name | Initials | Rank | Regiment | Country | Date of Death |
|---|---|---|---|---|---|---|---|
| 32374 | Olivier | Nico Smith | N S | Corporal | 1 Parachute Battalion | South Africa | 1987-10-31 |
| 32375 | Olivier | Oel | O | South Africa | 1950-01-01 | ||
| 37054 | Olivier | Chris | C | Sergeant | South Africa | 1983-12-01 | |
| 37057 | Olivier | Japie J | J J | Detective Warrant Officer | South Africa | 1980-11-23 | |
| 37058 | Olivier | Japie J | P L | Detective Warrant Officer | South Africa | 1967-06-28 | |
| 37059 | Olivier | Japie J | R M | Sergeant | South Africa | 1970-05-15 | |
| 37060 | Olivier | Willem Adriaan | W A | Constable | South Africa | 1962-02-09 | |
| 32369 | Oliver | John Christian Anthony | J C A | Staff Sergeant | 1 Construction Regiment | South Africa | 1983-07-04 |
| 32370 | Oliver | Timothy James | T J | Rifleman | 5 South African Infantry Battalion | South Africa | 1989-06-24 |
| 19315 | Oliphant | George | G | Corporal | South African Native Labour Corps (Corps) | South Africa | 1943-11-01 |
| 19316 | Oliphant | I | Private | Indian and Malay Corps (Corps) | South Africa | 1946-08-27 | |
| 19321 | Oliphant | Joseph | J | Private | South African Native Labour Corps (Corps) | South Africa | 1946-04-19 |
| 32368 | Oliphant | Brian Alphonso | K S | Corporal | 10 South African Infantry Battalion | South Africa | 1998-11-03 |
| 19310 | Olifant | Enoch Temba | E T | Private | South African Native Labour Corps (Corps) | South Africa | 1944-04-08 |
| 19313 | Olifant | Piet | P | Lance Corporal | Cape Corps | South Africa | 1943-09-14 |
| 37052 | Ogamb | S | Detective Sergeant | South Africa | 1976-04-19 | ||
| 19260 | Oelofse | Hendrik Gerhardus Petrus | H G P | Captain | Q Service Corps (Corps) | South Africa | 1947-05-19 |
| 19249 | Odendaal | Jacobus Petrus | J P | Private | Regiment Botha | South Africa | 1940-07-22 |
| 32358 | Odendaal | Christoffel Lombaard | C L | Air Mechanic | South African Air Force (Corps) | South Africa | 1960-10-15 |
| 32361 | Odendaal | Gert | G | South Africa | Unknown | ||
| 32362 | Odendaal | Hendrik Oswald Meyer | H O M | Candidate Officer | South African Air Force (Corps) | South Africa | 1971-09-21 |
| 37045 | Odendaal | Leon Steyl | M B | Constable | South Africa | 1986-11-04 | |
| 37046 | Odendaal | Leon Steyl | M D J | Inspector | South Africa | 1998-11-15 | |
| 37048 | Odendaal | Ockert Johannes | P G | Detective Inspector | South Africa | 2004-03-23 | |
| 37049 | Odendaal | Ockert Johannes | S D C | Sergeant | South Africa | 1996-01-16 | |
| 37041 | October | H G O | Constable | South Africa | 1986-06-24 | ||
| 37042 | October | P C | Sergeant | South Africa | 1998-11-14 | ||
| 19191 | Obree | William Henry | W H | Air Mechanic | South African Air Force (Corps) | South Africa | 1941-08-18 |
| 19181 | Oberholzer | Michael Johannes | M J | Trooper | South African Armoured Corps (Corps) | South Africa | 1942-10-27 |
| 19187 | Oberholzer | Zacharias Petrus | Z P | Corporal | South African Corps of Military Police (Corps) | South Africa | 1945-04-30 |
| 37035 | Oberholzer | G J | Inspector | South Africa | 2004-07-10 | ||
| 37037 | Oberholzer | Johannes Hendrik | J H | Constable | South Africa | 1975-05-08 | |
| 37039 | Oberholzer | Sarel Jacobus Burger | S J B | Constable | South Africa | 1994-10-20 | |
| 32350 | Oates | Ronald Kitchener | R K | Pupil Pilot | South African Air Force (Corps) | South Africa | 1937-07-27 |
| 39749 | Oates | Taylor | T | Private | General and Base Depots | South Africa | 1927-11-07 |
| 32349 | Oarum | J | Rifleman | 41 Battalion | South Africa | 1980-03-30 | |
| 19387 | O'neill | Richard Patrick | R P | Private | 4th South African Infantry | South Africa | 1921-06-12 |
| 19304 | O'leary | Kevin Leahy | K L | Captain | South African Air Force (Corps) | South Africa | 1945-07-08 |
| 32365 | O'gorman | Brian Alphonso | B A | Airman | South African Air Force (Corps) | South Africa | 1965-07-02 |
| 19253 | O'donnell | James | J | Private | South African Horse | South Africa | 1918-01-23 |
| 19223 | O'connor | Gilbert Rademan | G R | Major | South African Army Postal Corps (Corps) | South Africa | 1942-11-29 |
| 37040 | O'connor | Albert Cortney Michael | A C M | Plain Clothes Constable | South Africa | 1922-05-11 | |
| 5588 | O'brien Despard | William Hugh | W H | Corporal | South African Mounted Rifles | South Africa | 1920-01-07 |
| 19198 | O'brien | Joseph Gerald | J G | Air Mechanic | South African Air Force (Corps) | South Africa | 1942-02-05 |
| 19199 | O'brien | Kevin Laserian Coker | K L C | Pupil Pilot | 21 Air School | South Africa | 1942-01-26 |
| 19201 | O'brien | Michael Joseph | M J | Private | Essential Services Protection Corps (Corps) | South Africa | 1940-06-11 |
| 19206 | O'brien | Thomas Vincent | T V | Sergeant | Camp Commandants Staff | South Africa | 1918-08-11 |
| 32348 | Nzuza | Sakhile Obed | S O | Able Bodied Seaman | Naval Base Durban | South Africa | 1999-07-18 |
| 37032 | Nzuza | M | Constable | South Africa | 1960-01-24 | ||
| 37033 | Nzuza | S M | Special Constable | South Africa | 2004-11-01 |