| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sianaqi | city | Chahar Mahal va Bakhtiari | Iran | 32.14 | 50.75 | 7775 | 13559 |
| Siavashabad | city | Chahar Mahal va Bakhtiari | Iran | 32.18 | 50.31 | 6919 | 3378 |
| Siavashabad-e Si Mard | city | Chahar Mahal va Bakhtiari | Iran | 32.21 | 50.29 | 7549 | 3846 |
| Sib | city | Chahar Mahal va Bakhtiari | Iran | 32.04 | 50.36 | 6709 | 2682 |
| Sidgan | city | Chahar Mahal va Bakhtiari | Iran | 32.52 | 50.40 | 7618 | 5917 |
| Silah | city | Chahar Mahal va Bakhtiari | Iran | 31.43 | 51.15 | 6709 | 3874 |
| Silak | city | Chahar Mahal va Bakhtiari | Iran | 32.13 | 50.77 | 7122 | 13161 |
| Sinagūn | city | Chahar Mahal va Bakhtiari | Iran | 31.88 | 51.09 | 7549 | 4606 |
| Sineh Gum | city | Chahar Mahal va Bakhtiari | Iran | 31.88 | 51.09 | 7549 | 4606 |
| Sini | city | Chahar Mahal va Bakhtiari | Iran | 31.56 | 51.05 | 6161 | 3874 |
| Sir Mandeh | city | Chahar Mahal va Bakhtiari | Iran | 31.55 | 50.62 | 4327 | 3874 |
| Sirk | city | Chahar Mahal va Bakhtiari | Iran | 32.21 | 50.82 | 6709 | 27348 |
| Sirun Mazra`eh | city | Chahar Mahal va Bakhtiari | Iran | 32.64 | 49.59 | 6709 | 4471 |
| Sivak | city | Chahar Mahal va Bakhtiari | Iran | 31.89 | 50.93 | 8681 | 4592 |