| Dorchester to Noventa Vicentina | 745.26 mi (1,199.38 km) |
| Dorchester to Novi di Modena | 736.51 mi (1,185.30 km) |
| Dorchester to Novi Ligure | 663.08 mi (1,067.13 km) |
| Dorchester to Nuoro | 914.70 mi (1,472.07 km) |
| Dorchester to Occhiobello | 761.83 mi (1,226.04 km) |
| Dorchester to Oderzo | 764.98 mi (1,231.12 km) |
| Dorchester to Oggiono | 639.34 mi (1,028.93 km) |
| Dorchester to Olbia | 885.89 mi (1,425.70 km) |
| Dorchester to Oleggio | 619.66 mi (997.25 km) |
| Dorchester to Olgiate Comasco | 624.56 mi (1,005.13 km) |
| Dorchester to Olgiate Olona | 627.70 mi (1,010.18 km) |
| Dorchester to Omegna | 599.19 mi (964.30 km) |
| Dorchester to Opera | 651.08 mi (1,047.81 km) |
| Dorchester to Oppeano | 730.73 mi (1,176.00 km) |
| Dorchester to Orbassano | 606.78 mi (976.52 km) |
