| Veliko Tarnovo to Oignies | 1,179.81 mi (1,898.72 km) |
| Veliko Tarnovo to Oissel | 1,243.22 mi (2,000.77 km) |
| Veliko Tarnovo to Olivet | 1,190.40 mi (1,915.77 km) |
| Veliko Tarnovo to Ollioules | 994.92 mi (1,601.17 km) |
| Veliko Tarnovo to Olonne-sur-Mer | 1,356.64 mi (2,183.30 km) |
| Veliko Tarnovo to Oloron-Sainte-Marie | 1,316.75 mi (2,119.10 km) |
| Veliko Tarnovo to Onet Village | 1,149.27 mi (1,849.58 km) |
| Veliko Tarnovo to Onnaing | 1,152.73 mi (1,855.14 km) |
| Veliko Tarnovo to Orange | 1,040.74 mi (1,674.90 km) |
| Veliko Tarnovo to Orchies | 1,169.39 mi (1,881.95 km) |
| Veliko Tarnovo to Orleans | 1,190.36 mi (1,915.69 km) |
| Veliko Tarnovo to Orly | 1,177.55 mi (1,895.09 km) |
| Veliko Tarnovo to Ormesson-sur-Marne | 1,171.59 mi (1,885.48 km) |
| Veliko Tarnovo to Orsay | 1,186.18 mi (1,908.97 km) |
| Veliko Tarnovo to Orthez | 1,321.97 mi (2,127.51 km) |
