| Obernburg am Main to Oestrich-Winkel | 51.97 mi (83.63 km) |
| Obernburg am Main to Offenburg | 109.47 mi (176.17 km) |
| Obernburg am Main to Oftersheim | 40.90 mi (65.83 km) |
| Obernburg am Main to Ohrdruf | 97.91 mi (157.57 km) |
| Obernburg am Main to Ohringen | 47.05 mi (75.73 km) |
| Obernburg am Main to Olbernhau | 193.77 mi (311.84 km) |
| Obernburg am Main to Olching | 150.17 mi (241.67 km) |
| Obernburg am Main to Oldenburg | 231.73 mi (372.94 km) |
| Obernburg am Main to Oldenburg in Holstein | 316.89 mi (509.98 km) |
| Obernburg am Main to Olfen | 150.70 mi (242.53 km) |
| Obernburg am Main to Olpe | 99.62 mi (160.32 km) |
| Obernburg am Main to Olsberg | 108.25 mi (174.21 km) |
| Obernburg am Main to Oranienburg | 267.97 mi (431.26 km) |
| Obernburg am Main to Ortenberg | 35.84 mi (57.68 km) |
| Obernburg am Main to Oschatz | 201.13 mi (323.68 km) |
