| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Сей-Курт | city | Khanty-Mansiyskiy Avtonomnyy Okrug-Yugra | Russia | 63.53 | 65.43 | 19 | 0 |
| Сей-Курт | city | Khanty-Mansiyskiy Avtonomnyy Okrug-Yugra | Russia | 63.08 | 64.87 | 19 | 0 |
| Сейва | city | Permskiy Kray | Russia | 60.18 | 53.76 | 830 | 149 |
| Сейда | city | Komi | Russia | 67.08 | 63.12 | 265 | 149 |
| Сейдамское | city | Buryatiya | Russia | 52.75 | 113.32 | 3349 | 0 |
| Сейка | city | Altay | Russia | 51.88 | 86.73 | 1669 | 149 |
| Сейка | city | Altay | Russia | 51.97 | 85.97 | 931 | 8092 |
| Сейм | city | Kurskaya Oblast' | Russia | 51.36 | 37.04 | 830 | 1937 |
| Сеймица | city | Belgorodskaya Oblast' | Russia | 51.16 | 36.86 | 830 | 1910 |
| Сеймский | city | Kurskaya Oblast' | Russia | 51.68 | 35.90 | 830 | 13825 |
| Сеймчан | city | Magadanskaya Oblast' | Russia | 62.93 | 152.39 | 830 | 0 |
| Сейтяково | city | Bashkortostan | Russia | 55.97 | 55.79 | 351 | 1043 |
| Сейәле | city | Bashkortostan | Russia | 53.37 | 54.64 | 1003 | 977 |