| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ostrow Tschetschen | city | Dagestan | Russia | 43.96 | 47.64 | -1689 | 10194 |
| Ostrownoj | city | Murmanskaya Oblast' | Russia | 68.05 | 39.51 | 36 | 0 |
| Ostrownoje | city | Kaliningradskaya Oblast' | Russia | 55.14 | 21.66 | 45 | 1341 |
| Ostrowskoje | city | Kostromskaya Oblast' | Russia | 57.81 | 42.24 | 830 | 447 |