| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Siah Gahar | city | Iran | 34.01 | 50.56 | 6036 | 914 | |
| Siah Kahar | city | Iran | 34.01 | 50.56 | 6036 | 914 | |
| Siah Kuh-e Pa'in | city | Iran | 34.10 | 50.59 | 4530 | 2265 | |
| Sian Bala | city | Iran | 33.84 | 50.05 | 6233 | 4121 | |
| Sian Pain | city | Iran | 33.83 | 50.06 | 6148 | 4023 | |
| Sian `Olya | city | Iran | 33.84 | 50.05 | 6233 | 4121 | |
| Sian-e Bala | city | Iran | 33.84 | 50.05 | 6233 | 4121 | |
| Sian-e Pa'in | city | Iran | 33.83 | 50.06 | 6148 | 4023 | |
| Sian-e `Olya | city | Iran | 33.84 | 50.05 | 6233 | 4121 | |
| Siavashan | city | Iran | 34.44 | 50.00 | 6108 | 2893 | |
| Siavoshan | city | Iran | 34.44 | 50.00 | 6108 | 2893 | |
| Sibak | city | Iran | 33.68 | 49.88 | 6322 | 3499 | |
| Sili Gerd | city | Iran | 35.13 | 50.27 | 5026 | 1381 | |
| Silijerd | city | Iran | 35.13 | 50.27 | 5026 | 1381 | |
| Sinaghun | city | Iran | 33.96 | 50.93 | 7365 | 3124 | |
| Singhan | city | Iran | 33.96 | 50.93 | 7365 | 3124 | |
| Siyan Sofla | city | Iran | 33.83 | 50.06 | 6148 | 4023 |