| Orsova to Oberkirch | 726.91 mi (1,169.85 km) |
| Orsova to Obernburg am Main | 713.28 mi (1,147.92 km) |
| Orsova to Obernkirchen | 798.50 mi (1,285.05 km) |
| Orsova to Oberschleissheim | 569.15 mi (915.96 km) |
| Orsova to Oberstdorf | 609.00 mi (980.09 km) |
| Orsova to Obertraubling | 564.56 mi (908.57 km) |
| Orsova to Obertshausen | 732.29 mi (1,178.51 km) |
| Orsova to Oberursel | 746.58 mi (1,201.51 km) |
| Orsova to Ochsenfurt | 670.32 mi (1,078.77 km) |
| Orsova to Ochsenhausen | 635.71 mi (1,023.08 km) |
| Orsova to Ochtrup | 864.58 mi (1,391.41 km) |
| Orsova to Odenthal | 829.03 mi (1,334.20 km) |
| Orsova to Oelde | 816.35 mi (1,313.80 km) |
| Orsova to Oelsnitz | 617.12 mi (993.15 km) |
| Orsova to Oer-Erkenschwick | 843.10 mi (1,356.83 km) |
