| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ostuolba | city | Sakha (Yakutiya) | Russia | 63.00 | 129.50 | 282 | 149 |
| Ostup Pervy | city | Smolenskaya Oblast' | Russia | 55.68 | 31.58 | 830 | 717 |
| Ostup Pervyy | city | Smolenskaya Oblast' | Russia | 55.68 | 31.58 | 830 | 717 |
| Ostuzhnaya | city | Bryanskaya Oblast' | Russia | 52.47 | 34.14 | 830 | 1341 |