| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Unter Oberndorf | city | Niederosterreich | Austria | 48.18 | 15.95 | 1207 | 10473 |
| Unter Oggold | city | Jihocesky Kraj | Czech Republic | 48.70 | 14.23 | 3349 | 1937 |
| Unter Ollinger | city | Oberosterreich | Austria | 48.30 | 14.77 | 1669 | 1359 |
| Unter Ottaslawitz | city | Olomoucky Kraj | Czech Republic | 49.39 | 17.07 | 853 | 5378 |