| Diemen to Octeville | 342.78 mi (551.65 km) |
| Diemen to Oignies | 154.33 mi (248.37 km) |
| Diemen to Oissel | 266.96 mi (429.64 km) |
| Diemen to Olivet | 337.31 mi (542.84 km) |
| Diemen to Ollioules | 636.54 mi (1,024.41 km) |
| Diemen to Olonne-sur-Mer | 501.68 mi (807.37 km) |
| Diemen to Oloron-Sainte-Marie | 681.94 mi (1,097.48 km) |
| Diemen to Onet Village | 561.11 mi (903.02 km) |
| Diemen to Onnaing | 146.81 mi (236.27 km) |
| Diemen to Orange | 566.27 mi (911.32 km) |
| Diemen to Orchies | 148.32 mi (238.70 km) |
| Diemen to Orleans | 334.70 mi (538.64 km) |
| Diemen to Orly | 272.50 mi (438.55 km) |
| Diemen to Ormesson-sur-Marne | 267.24 mi (430.09 km) |
| Diemen to Orsay | 279.22 mi (449.37 km) |
