| Attendorn to Oestrich-Winkel | 77.28 mi (124.37 km) |
| Attendorn to Offenburg | 183.10 mi (294.68 km) |
| Attendorn to Oftersheim | 124.38 mi (200.17 km) |
| Attendorn to Ohrdruf | 124.84 mi (200.92 km) |
| Attendorn to Ohringen | 150.17 mi (241.68 km) |
| Attendorn to Olbernhau | 238.78 mi (384.27 km) |
| Attendorn to Olching | 252.86 mi (406.93 km) |
| Attendorn to Oldenburg | 140.70 mi (226.43 km) |
| Attendorn to Oldenburg in Holstein | 252.87 mi (406.96 km) |
| Attendorn to Olfen | 47.06 mi (75.73 km) |
| Attendorn to Olpe | 7.49 mi (12.06 km) |
| Attendorn to Olsberg | 29.94 mi (48.19 km) |
| Attendorn to Oranienburg | 253.86 mi (408.56 km) |
| Attendorn to Ortenberg | 72.91 mi (117.34 km) |
| Attendorn to Oschatz | 225.71 mi (363.24 km) |
