| Wittmund to Octeville | 487.22 mi (784.10 km) |
| Wittmund to Oignies | 295.64 mi (475.78 km) |
| Wittmund to Oissel | 410.13 mi (660.04 km) |
| Wittmund to Olivet | 470.68 mi (757.48 km) |
| Wittmund to Ollioules | 726.40 mi (1,169.03 km) |
| Wittmund to Olonne-sur-Mer | 643.97 mi (1,036.38 km) |
| Wittmund to Oloron-Sainte-Marie | 812.69 mi (1,307.90 km) |
| Wittmund to Onet Village | 677.96 mi (1,091.07 km) |
| Wittmund to Onnaing | 283.06 mi (455.53 km) |
| Wittmund to Orange | 665.70 mi (1,071.34 km) |
| Wittmund to Orchies | 288.13 mi (463.70 km) |
| Wittmund to Orleans | 468.19 mi (753.48 km) |
| Wittmund to Orly | 407.09 mi (655.15 km) |
| Wittmund to Ormesson-sur-Marne | 401.08 mi (645.47 km) |
| Wittmund to Orsay | 414.87 mi (667.67 km) |
