| Mountain | State | Latitude | Longitude | Elevation (meters) | Elevation (feet) |
|---|
| Sicocosebhaca | Province of KwaZulu-Natal | -29.6 | 29.3833333 | 2231 | 7320 |
| Sicongweni | Province of Eastern Cape | -30.6666667 | 29.1666667 | 1259 | 4131 |
| Sidumbeni | Province of KwaZulu-Natal | -28.7833333 | 30.6666667 | 1017 | 3337 |
| Sigedleni | Province of KwaZulu-Natal | -30.0666667 | 30.1 | 852 | 2795 |
| Signal Hill | Province of Eastern Cape | -32.7 | 25.6333333 | 916 | 3005 |
| Signal Hill | Province of Eastern Cape | -33.3333333 | 26.55 | 706 | 2316 |
| Sigoga | Province of Eastern Cape | -30.75 | 28.45 | 1352 | 4436 |
| Sigqokwana | Province of KwaZulu-Natal | -28.3833333 | 30.8166667 | 1220 | 4003 |
| Sigubudu | Province of KwaZulu-Natal | -28.2 | 31.05 | 897 | 2943 |
| Sigubudu | Province of KwaZulu-Natal | -28.0833333 | 31.6666667 | 589 | 1932 |
| Sigubudu | Province of KwaZulu-Natal | -28.6166667 | 30.5833333 | 1244 | 4081 |
| Sigwanjana | Province of KwaZulu-Natal | -28.6833333 | 30.0166667 | 829 | 2720 |
| Sihlabeni | Province of Eastern Cape | -31.6833333 | 28.6 | 926 | 3038 |
| Sihlalo | Province of KwaZulu-Natal | -28.1666667 | 31.3833333 | 704 | 2310 |
| Sihlangwini | Province of KwaZulu-Natal | -27.1833333 | 32.0333333 | 556 | 1824 |
| Sihleza | Province of Eastern Cape | -30.4833333 | 29.7166667 | 1410 | 4626 |
| Sihlungu | Province of KwaZulu-Natal | -28.4 | 31.1 | 1324 | 4344 |
| Sihlutankungu | Province of KwaZulu-Natal | -30.2833333 | 30.3166667 | 882 | 2894 |
| Sihlute | Province of KwaZulu-Natal | -27.8166667 | 31.2333333 | 1434 | 4705 |
| Sihlwa | Province of KwaZulu-Natal | -28.35 | 30.4333333 | 1214 | 3983 |
