| Orbetello to Noventa Vicentina | 197.14 mi (317.27 km) |
| Orbetello to Novi di Modena | 170.27 mi (274.02 km) |
| Orbetello to Novi Ligure | 201.07 mi (323.59 km) |
| Orbetello to Nuoro | 176.06 mi (283.35 km) |
| Orbetello to Occhiobello | 172.49 mi (277.60 km) |
| Orbetello to Oderzo | 239.44 mi (385.34 km) |
| Orbetello to Oggiono | 248.81 mi (400.42 km) |
| Orbetello to Olbia | 137.39 mi (221.11 km) |
| Orbetello to Oleggio | 253.17 mi (407.43 km) |
| Orbetello to Olgiate Comasco | 256.47 mi (412.75 km) |
| Orbetello to Olgiate Olona | 249.14 mi (400.95 km) |
| Orbetello to Omegna | 275.26 mi (442.98 km) |
| Orbetello to Opera | 226.35 mi (364.27 km) |
| Orbetello to Oppeano | 197.65 mi (318.09 km) |
| Orbetello to Orbassano | 255.22 mi (410.74 km) |
