| Skien to Noventa Vicentina | 965.64 mi (1,554.05 km) |
| Skien to Novi di Modena | 990.66 mi (1,594.31 km) |
| Skien to Novi Ligure | 998.84 mi (1,607.48 km) |
| Skien to Nuoro | 1,305.30 mi (2,100.68 km) |
| Skien to Occhiobello | 990.74 mi (1,594.44 km) |
| Skien to Oderzo | 935.71 mi (1,505.89 km) |
| Skien to Oggiono | 927.60 mi (1,492.83 km) |
| Skien to Olbia | 1,263.82 mi (2,033.91 km) |
| Skien to Oleggio | 941.00 mi (1,514.40 km) |
| Skien to Olgiate Comasco | 927.88 mi (1,493.28 km) |
| Skien to Olgiate Olona | 938.34 mi (1,510.11 km) |
| Skien to Omegna | 922.24 mi (1,484.20 km) |
| Skien to Opera | 955.30 mi (1,537.41 km) |
| Skien to Oppeano | 963.35 mi (1,550.37 km) |
| Skien to Orbassano | 984.79 mi (1,584.86 km) |
