| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Opálhegy | city | Presovsky | Slovakia | 48.90 | 21.56 | 997 | 6546 |
| Opálka | city | Plzensky Kraj | Czech Republic | 49.30 | 13.23 | 1669 | 2980 |
| Opátka | city | Kosicky | Slovakia | 48.79 | 21.06 | 1945 | 1594 |
| Opátska | city | Kosicky | Slovakia | 48.79 | 21.06 | 1945 | 1594 |