| Somma Lombardo to Noventa Vicentina | 140.00 mi (225.31 km) |
| Somma Lombardo to Novi di Modena | 120.10 mi (193.28 km) |
| Somma Lombardo to Novi Ligure | 63.98 mi (102.97 km) |
| Somma Lombardo to Nuoro | 372.17 mi (598.95 km) |
| Somma Lombardo to Occhiobello | 149.57 mi (240.71 km) |
| Somma Lombardo to Oderzo | 183.03 mi (294.55 km) |
| Somma Lombardo to Oggiono | 32.10 mi (51.66 km) |
| Somma Lombardo to Olbia | 331.78 mi (533.95 km) |
| Somma Lombardo to Oleggio | 6.60 mi (10.62 km) |
| Somma Lombardo to Olgiate Comasco | 14.60 mi (23.50 km) |
| Somma Lombardo to Olgiate Olona | 9.50 mi (15.29 km) |
| Somma Lombardo to Omegna | 19.51 mi (31.40 km) |
| Somma Lombardo to Opera | 32.48 mi (52.27 km) |
| Somma Lombardo to Oppeano | 123.15 mi (198.20 km) |
| Somma Lombardo to Orbassano | 73.29 mi (117.95 km) |
