| Nairn to Nasaud | 1,372.64 mi (2,209.04 km) |
| Nairn to Navodari | 1,660.39 mi (2,672.14 km) |
| Nairn to Negresti-Oas | 1,311.50 mi (2,110.66 km) |
| Nairn to Nehoiu | 1,529.85 mi (2,462.05 km) |
| Nairn to Ocna Mures | 1,395.51 mi (2,245.85 km) |
| Nairn to Odobesti | 1,536.65 mi (2,473.00 km) |
| Nairn to Odorheiu Secuiesc | 1,449.05 mi (2,332.03 km) |
| Nairn to Oltenita | 1,603.55 mi (2,580.67 km) |
| Nairn to Onesti | 1,503.05 mi (2,418.93 km) |
| Nairn to Oradea | 1,296.52 mi (2,086.55 km) |
| Nairn to Orastie | 1,399.08 mi (2,251.61 km) |
| Nairn to Oravita | 1,389.04 mi (2,235.45 km) |
| Nairn to Orsova | 1,428.55 mi (2,299.03 km) |
| Nairn to Otelu Rosu | 1,386.97 mi (2,232.11 km) |
| Nairn to Otopeni | 1,561.06 mi (2,512.28 km) |
