| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Sidyankin | city | Voronezhskaya Oblast' | Russia | 51.0211111 | 40.0308333 | 282 | 2461 |
| Simkin | city | Voronezhskaya Oblast' | Russia | 51.5716667 | 41.9488889 | 515 | 2222 |
| Simkino | city | Voronezhskaya Oblast' | Russia | 51.5716667 | 41.9488889 | 515 | 2222 |
| Sineduby | city | Voronezhskaya Oblast' | Russia | 50.5908333 | 39.4452778 | 718 | 2381 |
| Sini-Lipyagi | city | Voronezhskaya Oblast' | Russia | 51.3791667 | 38.4738889 | 754 | 1887 |
| Sinichino | city | Voronezhskaya Oblast' | Russia | 51.8241667 | 40.1941667 | 541 | 1915 |
| Sinichkino | city | Voronezhskaya Oblast' | Russia | 50.8769444 | 41.2419444 | 646 | 2108 |
| Siniye Lipyagi | city | Voronezhskaya Oblast' | Russia | 51.3791667 | 38.4738889 | 754 | 1887 |
| Sinyavka | city | Voronezhskaya Oblast' | Russia | 51.2555556 | 40.9902778 | 419 | 2674 |
| Sirotovka | city | Voronezhskaya Oblast' | Russia | 50.4313889 | 39.9391667 | 600 | 1904 |
| Sitnaya | city | Voronezhskaya Oblast' | Russia | 52.05 | 39.35 | 341 | 3021 |
| Sivertsovo | city | Voronezhskaya Oblast' | Russia | 52 | 38.9 | 587 | 3193 |
| Sivirtsevo-Kaver'ya | city | Voronezhskaya Oblast' | Russia | 51.9091667 | 39.0202778 | 515 | 3548 |
|
|