| Arendal to Noventa Vicentina | 917.90 mi (1,477.21 km) |
| Arendal to Novi di Modena | 941.75 mi (1,515.59 km) |
| Arendal to Novi Ligure | 946.69 mi (1,523.55 km) |
| Arendal to Nuoro | 1,253.88 mi (2,017.93 km) |
| Arendal to Occhiobello | 942.99 mi (1,517.60 km) |
| Arendal to Oderzo | 889.91 mi (1,432.17 km) |
| Arendal to Oggiono | 876.27 mi (1,410.22 km) |
| Arendal to Olbia | 1,212.61 mi (1,951.50 km) |
| Arendal to Oleggio | 888.61 mi (1,430.08 km) |
| Arendal to Olgiate Comasco | 875.97 mi (1,409.74 km) |
| Arendal to Olgiate Olona | 886.31 mi (1,426.37 km) |
| Arendal to Omegna | 869.51 mi (1,399.34 km) |
| Arendal to Opera | 903.77 mi (1,454.47 km) |
| Arendal to Oppeano | 915.00 mi (1,472.54 km) |
| Arendal to Orbassano | 930.99 mi (1,498.29 km) |
