| Stadthagen to Oerlinghausen | 33.71 mi (54.25 km) |
| Stadthagen to Oestrich-Winkel | 168.91 mi (271.84 km) |
| Stadthagen to Offenburg | 272.39 mi (438.37 km) |
| Stadthagen to Oftersheim | 205.90 mi (331.37 km) |
| Stadthagen to Ohrdruf | 122.41 mi (197.00 km) |
| Stadthagen to Ohringen | 216.28 mi (348.06 km) |
| Stadthagen to Olbernhau | 211.21 mi (339.91 km) |
| Stadthagen to Olching | 299.80 mi (482.49 km) |
| Stadthagen to Oldenburg | 70.21 mi (112.99 km) |
| Stadthagen to Oldenburg in Holstein | 153.01 mi (246.25 km) |
| Stadthagen to Olfen | 88.18 mi (141.91 km) |
| Stadthagen to Olpe | 107.85 mi (173.56 km) |
| Stadthagen to Olsberg | 74.09 mi (119.24 km) |
| Stadthagen to Oranienburg | 171.91 mi (276.67 km) |
| Stadthagen to Ortenberg | 136.19 mi (219.18 km) |
