| Gran to Octeville | 885.35 mi (1,424.83 km) |
| Gran to Oignies | 747.94 mi (1,203.69 km) |
| Gran to Oissel | 851.15 mi (1,369.79 km) |
| Gran to Olivet | 934.17 mi (1,503.40 km) |
| Gran to Ollioules | 1,211.09 mi (1,949.07 km) |
| Gran to Olonne-sur-Mer | 1,081.04 mi (1,739.77 km) |
| Gran to Oloron-Sainte-Marie | 1,278.46 mi (2,057.48 km) |
| Gran to Onet Village | 1,157.62 mi (1,863.01 km) |
| Gran to Onnaing | 744.47 mi (1,198.11 km) |
| Gran to Orange | 1,150.72 mi (1,851.91 km) |
| Gran to Orchies | 743.86 mi (1,197.12 km) |
| Gran to Orleans | 931.52 mi (1,499.13 km) |
| Gran to Orly | 869.33 mi (1,399.06 km) |
| Gran to Ormesson-sur-Marne | 864.49 mi (1,391.26 km) |
| Gran to Orsay | 875.34 mi (1,408.73 km) |
