| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ostaškov | city | Tverskaya Oblast' | Russia | 57.15 | 33.11 | 830 | 4785 |
| Ostašov | city | Liberecky Kraj | Czech Republic | 50.77 | 15.01 | 1256 | 52988 |
| Ostašovice | city | Kralovehradecky Kraj | Czech Republic | 50.18 | 16.14 | 1076 | 5896 |