| Harsefeld to Octeville | 546.05 mi (878.78 km) |
| Harsefeld to Oignies | 344.97 mi (555.17 km) |
| Harsefeld to Oissel | 459.89 mi (740.13 km) |
| Harsefeld to Olivet | 509.11 mi (819.34 km) |
| Harsefeld to Ollioules | 731.66 mi (1,177.50 km) |
| Harsefeld to Olonne-sur-Mer | 690.54 mi (1,111.32 km) |
| Harsefeld to Oloron-Sainte-Marie | 845.37 mi (1,360.50 km) |
| Harsefeld to Onet Village | 700.90 mi (1,127.98 km) |
| Harsefeld to Onnaing | 328.48 mi (528.64 km) |
| Harsefeld to Orange | 677.50 mi (1,090.32 km) |
| Harsefeld to Orchies | 336.24 mi (541.12 km) |
| Harsefeld to Orleans | 506.77 mi (815.57 km) |
| Harsefeld to Orly | 447.73 mi (720.55 km) |
| Harsefeld to Ormesson-sur-Marne | 441.21 mi (710.07 km) |
| Harsefeld to Orsay | 456.25 mi (734.27 km) |
