| Bad Nenndorf to Octeville | 514.05 mi (827.28 km) |
| Bad Nenndorf to Oignies | 303.82 mi (488.96 km) |
| Bad Nenndorf to Oissel | 416.25 mi (669.89 km) |
| Bad Nenndorf to Olivet | 452.73 mi (728.60 km) |
| Bad Nenndorf to Ollioules | 656.12 mi (1,055.93 km) |
| Bad Nenndorf to Olonne-sur-Mer | 640.41 mi (1,030.65 km) |
| Bad Nenndorf to Oloron-Sainte-Marie | 782.10 mi (1,258.67 km) |
| Bad Nenndorf to Onet Village | 632.13 mi (1,017.31 km) |
| Bad Nenndorf to Onnaing | 283.30 mi (455.93 km) |
| Bad Nenndorf to Orange | 603.92 mi (971.92 km) |
| Bad Nenndorf to Orchies | 293.91 mi (473.00 km) |
| Bad Nenndorf to Orleans | 450.55 mi (725.09 km) |
| Bad Nenndorf to Orly | 394.32 mi (634.60 km) |
| Bad Nenndorf to Ormesson-sur-Marne | 387.45 mi (623.54 km) |
| Bad Nenndorf to Orsay | 403.43 mi (649.26 km) |
