| Terracina to Octeville | 920.92 mi (1,482.08 km) |
| Terracina to Oignies | 802.32 mi (1,291.21 km) |
| Terracina to Oissel | 809.96 mi (1,303.50 km) |
| Terracina to Olivet | 718.97 mi (1,157.07 km) |
| Terracina to Ollioules | 399.81 mi (643.43 km) |
| Terracina to Olonne-sur-Mer | 829.39 mi (1,334.77 km) |
| Terracina to Oloron-Sainte-Marie | 720.12 mi (1,158.93 km) |
| Terracina to Onet Village | 579.95 mi (933.33 km) |
| Terracina to Onnaing | 780.66 mi (1,256.35 km) |
| Terracina to Orange | 471.42 mi (758.68 km) |
| Terracina to Orchies | 795.34 mi (1,279.97 km) |
| Terracina to Orleans | 720.19 mi (1,159.03 km) |
| Terracina to Orly | 738.20 mi (1,188.02 km) |
| Terracina to Ormesson-sur-Marne | 735.05 mi (1,182.94 km) |
| Terracina to Orsay | 743.36 mi (1,196.32 km) |
