| Dorog to Octeville | 935.85 mi (1,506.11 km) |
| Dorog to Oignies | 735.28 mi (1,183.32 km) |
| Dorog to Oissel | 812.86 mi (1,308.17 km) |
| Dorog to Olivet | 779.68 mi (1,254.78 km) |
| Dorog to Ollioules | 699.03 mi (1,124.97 km) |
| Dorog to Olonne-sur-Mer | 964.39 mi (1,552.04 km) |
| Dorog to Oloron-Sainte-Marie | 984.80 mi (1,584.88 km) |
| Dorog to Onet Village | 806.08 mi (1,297.26 km) |
| Dorog to Onnaing | 708.12 mi (1,139.61 km) |
| Dorog to Orange | 712.01 mi (1,145.87 km) |
| Dorog to Orchies | 724.46 mi (1,165.90 km) |
| Dorog to Orleans | 779.04 mi (1,253.75 km) |
| Dorog to Orly | 753.74 mi (1,213.02 km) |
| Dorog to Ormesson-sur-Marne | 747.08 mi (1,202.31 km) |
| Dorog to Orsay | 763.15 mi (1,228.17 km) |
