| Niksar to Noventa Vicentina | 1,320.88 mi (2,125.75 km) |
| Niksar to Novi di Modena | 1,349.58 mi (2,171.94 km) |
| Niksar to Novi Ligure | 1,452.74 mi (2,337.95 km) |
| Niksar to Nuoro | 1,447.02 mi (2,328.76 km) |
| Niksar to Occhiobello | 1,316.50 mi (2,118.71 km) |
| Niksar to Oderzo | 1,278.53 mi (2,057.60 km) |
| Niksar to Oggiono | 1,429.12 mi (2,299.95 km) |
| Niksar to Olbia | 1,431.92 mi (2,304.46 km) |
| Niksar to Oleggio | 1,462.72 mi (2,354.02 km) |
| Niksar to Olgiate Comasco | 1,447.53 mi (2,329.58 km) |
| Niksar to Olgiate Olona | 1,450.81 mi (2,334.85 km) |
| Niksar to Omegna | 1,474.89 mi (2,373.61 km) |
| Niksar to Opera | 1,433.59 mi (2,307.15 km) |
| Niksar to Oppeano | 1,337.92 mi (2,153.18 km) |
| Niksar to Orbassano | 1,514.26 mi (2,436.96 km) |
