| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ober Mittlau | city | | Poland | 51.2166667 | 15.7166667 | 754 | 12327 |
| Obora | city | | Poland | 51.4166667 | 16.15 | 544 | 12292 |
| Ogrodzisko | city | | Poland | 51.3666667 | 16.05 | 469 | 12314 |
| Okmiany | city | | Poland | 51.25 | 15.7833333 | 649 | 12348 |
| Olszanica | city | | Poland | 51.2 | 15.8 | 721 | 12359 |
| Olszany | city | | Poland | 51.5 | 16.3833333 | 295 | 12279 |
| Opalanki | city | | Poland | 51.5333333 | 15.7666667 | 459 | 11738 |
| Osiek | city | | Poland | 51.3666667 | 16.2333333 | 387 | 12314 |
| Osla | city | | Poland | 51.3166667 | 15.75 | 646 | 12324 |
| Osła | city | | Poland | 51.3166667 | 15.75 | 646 | 12324 |
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