| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Okoc | city | Trnavsky | Slovakia | 47.89 | 17.81 | 321 | 10170 |
| Okoličná na Ostrove | city | Nitriansky | Slovakia | 47.80 | 17.92 | 337 | 5259 |
| Okruhlé | city | Presovsky | Slovakia | 49.18 | 21.55 | 921 | 3273 |
| Okrut | city | Nitriansky | Slovakia | 49.15 | 18.38 | 1213 | 22926 |
| Okružná | city | Presovsky | Slovakia | 49.02 | 21.37 | 1669 | 7086 |
| Okánikov | city | Nitriansky | Slovakia | 47.78 | 17.88 | 337 | 5203 |