| Oberlausitz | Upper Lusatia |
| Oberhaut | epidermis |
| Oberhaupt | head |
| Oberhaus | upper house upper chamber House of Lords |
| Oberlauf | headwater upper reaches |
| Überlast | overload |
| verlaust | lousy |
| Lausitz | Lusatia |
| Obergurt | surcingle |
| Oberhoheit | suzerainty |
| Oberseite | upper side |
| Obersieb | chaffer |
| oberst | topmost |
| Oberst | colonel |
| Oberbau | track |
| Oberbauch | epigastrium |
| Oberhäslich | Oberhaeslich |
| Oberlicht | skylight fanlight transom window |
| obergärig | top-fermented |
| oberkant | above |