| Mountain | State | Latitude | Longitude | Elevation (meters) | Elevation (feet) |
|---|
| Sipatshini | Province of KwaZulu-Natal | -28.7666667 | 30.3166667 | 791 | 2595 |
| Siphamhanweni | Province of KwaZulu-Natal | -29.5 | 29.5666667 | 1517 | 4977 |
| Siphande | Province of KwaZulu-Natal | -28.7 | 30.7833333 | 582 | 1909 |
| Siphezi | Province of KwaZulu-Natal | -28.3833333 | 30.85 | 1295 | 4249 |
| Siphikeni | Province of KwaZulu-Natal | -28.4333333 | 31.3833333 | 720 | 2362 |
| Siphongweni | Province of Eastern Cape | -30.8666667 | 28.6666667 | 1507 | 4944 |
| Sipongo | Province of KwaZulu-Natal | -27.9833333 | 32.0166667 | 513 | 1683 |
| Siponya | Province of KwaZulu-Natal | -30.2333333 | 30.3 | 903 | 2963 |
| Sipoonkop | Province of Eastern Cape | -33.6166667 | 24.0166667 | 1019 | 3343 |
| Sitezi | Province of KwaZulu-Natal | -28.1 | 31.8833333 | 420 | 1378 |
| Sithungwane | Mpumalanga | -25.2166667 | 31.35 | 543 | 1781 |
| Sitilo | Province of KwaZulu-Natal | -28.8833333 | 31.1333333 | 535 | 1755 |
| Sitshayelweni | Province of Eastern Cape | -31.45 | 29.3666667 | 218 | 715 |
| Sittensberg | Province of Northern Cape | -30.35 | 18.1333333 | 1494 | 4902 |
| Situndu | Province of KwaZulu-Natal | -29.2166667 | 30.9833333 | 576 | 1890 |
| Siwabomvu | Province of KwaZulu-Natal | -27.4833333 | 30.9833333 | 909 | 2982 |
| Siwasamanqe | Province of KwaZulu-Natal | -28.9666667 | 31.2166667 | 520 | 1706 |
| Siwela | Province of KwaZulu-Natal | -27.7 | 31.9166667 | 663 | 2175 |
| Siweni | Province of KwaZulu-Natal | -29.9666667 | 29.5833333 | 1704 | 5591 |
| Sixhuzulo | Province of Eastern Cape | -30.9 | 28.3833333 | 1606 | 5269 |
