| Vigo to Orbetello | 1,015.42 mi (1,634.16 km) |
| Vigo to Oria | 1,365.92 mi (2,198.23 km) |
| Vigo to Oristano | 913.93 mi (1,470.83 km) |
| Vigo to Orta Nova | 1,255.61 mi (2,020.71 km) |
| Vigo to Orte | 1,074.76 mi (1,729.65 km) |
| Vigo to Ortona | 1,177.67 mi (1,895.28 km) |
| Vigo to Orvieto | 1,059.00 mi (1,704.29 km) |
| Vigo to Orzinuovi | 952.67 mi (1,533.17 km) |
| Vigo to Osimo | 1,124.16 mi (1,809.16 km) |
| Vigo to Ospitaletto | 960.69 mi (1,546.08 km) |
| Vigo to Ostuni | 1,359.63 mi (2,188.12 km) |
| Vigo to Ottaviano | 1,199.35 mi (1,930.17 km) |
| Vigo to Ovada | 884.89 mi (1,424.09 km) |
| Vigo to Ozieri | 923.37 mi (1,486.02 km) |
| Vigo to Paceco | 1,157.93 mi (1,863.51 km) |
