| | Name | Given Name | Initials | Regiment | Unit | Cemetery | Country | Locality | Date of Death |
 |  | NIX | JOHN LINCOLN | J L | Mounted Commandos, S.A. Forces | Hoopstad Commando | PLESSISRUST FARM CEMETERY | South Africa | Free State | 1914-12-23 |
| | | NOLTE | JOHN EDWARD | J E | Mounted Commandos, S.A. Forces | Heidelberg Commando | GERMISTON (PRIMROSE) CEMETERY | South Africa | Gauteng | 1914-10-26 |
| | | NORMAN | CHARLES GODFRIED | C G | Mounted Commandos, S.A. Forces | Ermelo "B" Commando | KARIBIB CEMETERY | Namibia | | 1915-03-22 |
| | | OBERHOLZER | MACHIEL ADRIAAN | M A | Mounted Commandos, S.A. Forces | Brand's Horse | FAURESMITH CEMETERY | South Africa | Free State | 1914-11-20 |
| | | OLIVIER | HENDRIK JACOBUS | H J | Mounted Commandos, S.A. Forces | Carnarvon Commando | GOODHOUSE CEMETERY | South Africa | Northern Cape | 1914-12-23 |
| | | OLIVIER | JOHANNES WYNAND LODEWIKUS | J W L | Mounted Commandos, S.A. Forces | Van Deventer's Commando | BOLIVIA FARM BURIAL GROUND, REITZ | South Africa | Free State | 1914-12-02 |
| | | OOSTHUIZEN | NICHOLAS JACOBUS | N J | Mounted Commandos, S.A. Forces | Frankfort Commando | VILLIERS CEMETERY | South Africa | Free State | 1914-12-18 |
| | | OOSTHUYSE | DIETLOF JACOBUS | D J | Mounted Commandos, S.A. Forces | Ermelo "B" Commando | WARMBAD MEMORIAL | Namibia | | 1915-03-20 |
| | | OPPERMAN | ALBERT STEPHEN ABRAHAM | A S A | Mounted Commandos, S.A. Forces | Geyser's Commando | RHENOSTERPOORT FARM BURIAL GROUND | South Africa | Limpopo Province | 1914-11-25 |
| | | OPPERMAN | DANIEL JACOBUS ELARDUS | D J E | Mounted Commandos, S.A. Forces | Botha's Commando | PRETORIA (REBECCA STREET) CEMETERY | South Africa | Gauteng | 1914-11-08 |