| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ocieka | city | Poland | 50.13 | 21.58 | 692 | 6888 | |
| Ocieszyn | city | Poland | 50.12 | 21.58 | 652 | 7419 | |
| Okonin | city | Poland | 50.05 | 21.55 | 875 | 13008 | |
| Olchowa | city | Poland | 50.05 | 21.77 | 1023 | 9787 | |
| Olechowskie | city | Poland | 50.27 | 22.20 | 672 | 10289 | |
| Olimpów | city | Poland | 50.02 | 21.75 | 820 | 9519 | |
| Olszowe | city | Poland | 50.28 | 22.08 | 685 | 7936 | |
| Opaleniska | city | Poland | 50.13 | 22.42 | 646 | 10677 | |
| Opalenisko | city | Poland | 50.13 | 22.42 | 646 | 10677 | |
| Oparowka | city | Poland | 49.83 | 21.72 | 905 | 8863 | |
| Osia Gora | city | Poland | 50.27 | 21.90 | 731 | 6231 | |
| Ostrow | city | Poland | 50.08 | 21.58 | 662 | 11407 | |
| Ostrowy Baranoskie | city | Poland | 50.33 | 21.63 | 603 | 4824 | |
| Ostrowy Baranowskie | city | Poland | 50.33 | 21.63 | 603 | 4824 | |
| Ostrowy Tunowskie | city | Poland | 50.30 | 21.65 | 761 | 4688 | |
| Ostrowy Tuszowskie | city | Poland | 50.30 | 21.65 | 761 | 4688 | |
| Otalez | city | Poland | 50.35 | 21.23 | 524 | 7140 | |
| Otałęż | city | Poland | 50.35 | 21.23 | 524 | 7140 | |
| Ożanna | city | Poland | 50.28 | 22.53 | 623 | 4792 | |
| Ożenna | city | Poland | 50.28 | 22.53 | 623 | 4792 |