| Westerstede to Oerlinghausen | 94.08 mi (151.41 km) |
| Westerstede to Oestrich-Winkel | 224.58 mi (361.43 km) |
| Westerstede to Offenburg | 330.49 mi (531.88 km) |
| Westerstede to Oftersheim | 269.59 mi (433.86 km) |
| Westerstede to Ohrdruf | 205.70 mi (331.04 km) |
| Westerstede to Ohringen | 288.07 mi (463.61 km) |
| Westerstede to Olbernhau | 291.49 mi (469.11 km) |
| Westerstede to Olching | 379.18 mi (610.23 km) |
| Westerstede to Oldenburg | 14.32 mi (23.05 km) |
| Westerstede to Oldenburg in Holstein | 141.18 mi (227.20 km) |
| Westerstede to Olfen | 108.29 mi (174.28 km) |
| Westerstede to Olpe | 154.35 mi (248.40 km) |
| Westerstede to Olsberg | 133.44 mi (214.75 km) |
| Westerstede to Oranienburg | 223.79 mi (360.16 km) |
| Westerstede to Ortenberg | 205.79 mi (331.19 km) |
