| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Koy | city | Tverskaya Oblast' | Russia | 57.71 | 37.54 | 830 | 869 |
| Koyalova | city | Tverskaya Oblast' | Russia | 56.03 | 34.53 | 830 | 671 |
| Koydinovo | city | Tverskaya Oblast' | Russia | 56.39 | 36.04 | 830 | 330 |
| Koyvushka | city | Tverskaya Oblast' | Russia | 57.94 | 36.11 | 403 | 596 |