| Siverek to Octeville | 2,172.23 mi (3,495.87 km) |
| Siverek to Oignies | 1,978.65 mi (3,184.33 km) |
| Siverek to Oissel | 2,047.98 mi (3,295.91 km) |
| Siverek to Olivet | 1,998.03 mi (3,215.52 km) |
| Siverek to Ollioules | 1,786.36 mi (2,874.87 km) |
| Siverek to Olonne-sur-Mer | 2,163.90 mi (3,482.46 km) |
| Siverek to Oloron-Sainte-Marie | 2,111.30 mi (3,397.81 km) |
| Siverek to Onet Village | 1,949.66 mi (3,137.67 km) |
| Siverek to Onnaing | 1,951.46 mi (3,140.57 km) |
| Siverek to Orange | 1,839.67 mi (2,960.66 km) |
| Siverek to Orchies | 1,967.97 mi (3,167.14 km) |
| Siverek to Orleans | 1,997.95 mi (3,215.39 km) |
| Siverek to Orly | 1,983.59 mi (3,192.28 km) |
| Siverek to Ormesson-sur-Marne | 1,977.47 mi (3,182.43 km) |
| Siverek to Orsay | 1,992.38 mi (3,206.43 km) |
