| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Siabero | city | Leningradskaya Oblast' | Russia | 58.79 | 29.14 | 131 | 0 |
| Siademka | city | Penzenskaya Oblast' | Russia | 53.64 | 42.60 | 830 | 1490 |
| Siagajevka | city | Omskaya Oblast' | Russia | 55.61 | 74.17 | 830 | 745 |
| Sialejevskaja Pjatina | city | Mordoviya | Russia | 53.81 | 44.52 | 830 | 1490 |
| Sialeyevskaya Pyatina | city | Mordoviya | Russia | 53.81 | 44.52 | 830 | 1490 |
| Sialeyevskiy | city | Mordoviya | Russia | 54.08 | 44.20 | 830 | 518 |
| Sialeyevskiy Maydan | city | Mordoviya | Russia | 54.08 | 44.20 | 830 | 518 |
| Siam-Mozjga | city | Udmurtiya | Russia | 57.10 | 51.97 | 830 | 1038 |
| Siamo | city | Kamchatskiy Kray | Russia | 52.07 | 158.33 | 0 | 0 |
| Siamzja | city | Vologodskaya Oblast' | Russia | 60.02 | 41.06 | 830 | 149 |
| Sian | city | Amurskaya Oblast' | Russia | 53.30 | 126.95 | 830 | 0 |
| Siandeba | city | Kareliya | Russia | 61.17 | 32.75 | 75 | 447 |
| Sianvaara | city | Kareliya | Russia | 62.98 | 31.98 | 830 | 108 |
| Siargozero | city | Leningradskaya Oblast' | Russia | 60.95 | 34.75 | 370 | 0 |
| Siarttsjigurt | city | Udmurtiya | Russia | 56.87 | 52.55 | 830 | 1192 |
| Sias | city | Vologodskaya Oblast' | Russia | 59.13 | 40.21 | 400 | 716 |
| Sias-Pen'ye | city | Kostromskaya Oblast' | Russia | 57.83 | 41.89 | 830 | 680 |
| Sias-Pen’ye | city | Kostromskaya Oblast' | Russia | 57.83 | 41.89 | 830 | 680 |
| Siaskelevo | city | Leningradskaya Oblast' | Russia | 59.55 | 29.85 | 830 | 150 |
| Siasstroj | city | Leningradskaya Oblast' | Russia | 60.14 | 32.57 | 62 | 0 |
| Siatrakasy | city | Chuvashiya | Russia | 56.00 | 47.18 | 830 | 2590 |
| Siatrakasy | city | Chuvashiya | Russia | 55.93 | 46.80 | 830 | 4023 |
| Siava | city | Nizhegorodskaya Oblast' | Russia | 58.01 | 46.32 | 367 | 721 |
| Siavel | city | Ryazanskaya Oblast' | Russia | 53.89 | 41.94 | 406 | 1043 |
| Siavta | city | Nenetskiy Avtonomnyy Okrug | Russia | 67.13 | 61.82 | 190 | 0 |