| | Name | Given Name | Initials | Regiment | Unit | Cemetery | Country | Locality | Date of Death |
 |  | SIKONDO | FRANS | F | Native Military Corps, S.A. Forces | | ALAMEIN MEMORIAL | Egypt | | 1944-12-11 |
| | | SIKOTA | ANDRIES | A | Native Military Corps, S.A. Forces | | PALMIETKUIL SOUTH WAR CEMETERY MEMORIAL | South Africa | Gauteng | 1943-09-14 |
| | | SILLORESE | SIMON LEKGOTE | S L | Native Military Corps, S.A. Forces | | JOHANNESBURG (NEWCLARE) CEMETERY | South Africa | Gauteng | 1942-11-19 |
| |  | SILONGO | LUNISO | L | Native Military Corps, S.A. Forces | | KATIMA MULILO GRAVES | Namibia | | 1941-04-06 |
| | | SIMAHLA | RICHARD | R | Native Military Corps, S.A. Forces | | LESOTHO MEMORIAL | Lesotho | | 1943-11-20 |
| | | SIMATAA | MACHINGA | M | Native Military Corps, S.A. Forces | | PALMIETKUIL SOUTH WAR CEMETERY MEMORIAL | South Africa | Gauteng | 1941-04-06 |
| | | SINGE | JOB | J | Native Military Corps, S.A. Forces | | RANGOON MEMORIAL | Myanmar | | 1943-03-03 |
| | | SIPAMLA | | B | Native Military Corps, S.A. Forces | | KETEKETE LOCATION BURIAL GROUND | South Africa | Eastern Cape | 1944-08-27 |
| | | SIRWAMANG | PETRUS | P | Native Military Corps, S.A. Forces | | VICTORIA WEST (VRYGROND) BURIAL GROUND | South Africa | Northern Cape | 1945-06-11 |
| | | SISHEBE | ANDRIES | A | Native Military Corps, S.A. Forces | | POLOKWANE (OR PIETERSBURG) CEMETERY | South Africa | Limpopo Province | 1945-10-15 |