| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sìligo/Siligo | city | Sardegna | Italy | 40.57 | 8.72 | 1669 | 3505 |
| Sìnnia | city | Sardegna | Italy | 39.30 | 9.20 | 393 | 32820 |
| Sìnnia/Sinnai | city | Sardegna | Italy | 39.30 | 9.20 | 393 | 32820 |
| Sìsini | city | Sardegna | Italy | 39.56 | 9.17 | 1033 | 5433 |