| Ort | PLZ | Bundesland |
|---|---|---|
| Ober Kostenz | 55481 | RP |
| Ober-Flörsheim | 55234 | RP |
| Ober-Hilbersheim | 55437 | RP |
| Ober-Mörlen | 61239 | HE |
| Ober-Olm | 55270 | RP |
| Ober-Ramstadt | 64372 | HE |
| Oberahr | 56414 | RP |
| Oberalben | 66871 | RP |
| Oberammergau | 82487 | BY |
| Oberarnbach | 66851 | RP |
| Oberasbach | 90522 | BY |
| Oberau | 82496 | BY |
| Oberaudorf | 83080 | BY |
| Oberaula | 36280 | HE |
| Oberaurach | 97514 | BY |
| Oberbachheim | 56355 | RP |
| Oberbarnim | 15377 | BB |
| Oberbergkirchen | 84564 | BY |
| Oberbettingen | 54578 | RP |
| Oberbillig | 54331 | RP |
| Oberbodnitz | 07646 | TH |
Karte O
