| Oberhausen to Obernburg am Main | 151.61 mi (244.00 km) |
| Oberhausen to Obernkirchen | 109.60 mi (176.39 km) |
| Oberhausen to Oberschleissheim | 306.55 mi (493.35 km) |
| Oberhausen to Oberstdorf | 321.13 mi (516.81 km) |
| Oberhausen to Obertraubling | 292.07 mi (470.04 km) |
| Oberhausen to Obertshausen | 130.81 mi (210.52 km) |
| Oberhausen to Oberursel | 116.30 mi (187.16 km) |
| Oberhausen to Ochsenfurt | 189.57 mi (305.08 km) |
| Oberhausen to Ochsenhausen | 273.50 mi (440.15 km) |
| Oberhausen to Ochtrup | 50.85 mi (81.83 km) |
| Oberhausen to Odenthal | 33.74 mi (54.30 km) |
| Oberhausen to Oelde | 59.56 mi (95.85 km) |
| Oberhausen to Oelsnitz | 242.21 mi (389.80 km) |
| Oberhausen to Oer-Erkenschwick | 19.17 mi (30.86 km) |
| Oberhausen to Oerlinghausen | 83.44 mi (134.28 km) |
