| Canals to Nasaud | 1,377.37 mi (2,216.66 km) |
| Canals to Navodari | 1,543.58 mi (2,484.14 km) |
| Canals to Negresti-Oas | 1,345.35 mi (2,165.13 km) |
| Canals to Nehoiu | 1,438.52 mi (2,315.08 km) |
| Canals to Ocna Mures | 1,336.75 mi (2,151.30 km) |
| Canals to Odobesti | 1,479.19 mi (2,380.52 km) |
| Canals to Odorheiu Secuiesc | 1,402.62 mi (2,257.30 km) |
| Canals to Oltenita | 1,444.75 mi (2,325.10 km) |
| Canals to Onesti | 1,470.66 mi (2,366.80 km) |
| Canals to Oradea | 1,261.42 mi (2,030.05 km) |
| Canals to Orastie | 1,297.36 mi (2,087.90 km) |
| Canals to Oravita | 1,213.41 mi (1,952.79 km) |
| Canals to Orsova | 1,243.16 mi (2,000.67 km) |
| Canals to Otelu Rosu | 1,252.35 mi (2,015.46 km) |
| Canals to Otopeni | 1,419.99 mi (2,285.25 km) |
