| Namsos to Navodari | 1,541.20 mi (2,480.32 km) |
| Namsos to Negresti-Oas | 1,230.25 mi (1,979.89 km) |
| Namsos to Nehoiu | 1,437.23 mi (2,312.99 km) |
| Namsos to Ocna Mures | 1,334.06 mi (2,146.96 km) |
| Namsos to Odobesti | 1,421.93 mi (2,288.37 km) |
| Namsos to Odorheiu Secuiesc | 1,359.19 mi (2,187.41 km) |
| Namsos to Oltenita | 1,525.53 mi (2,455.10 km) |
| Namsos to Onesti | 1,385.13 mi (2,229.16 km) |
| Namsos to Oradea | 1,264.35 mi (2,034.77 km) |
| Namsos to Orastie | 1,361.49 mi (2,191.10 km) |
| Namsos to Oravita | 1,398.20 mi (2,250.18 km) |
| Namsos to Orsova | 1,427.25 mi (2,296.94 km) |
| Namsos to Otelu Rosu | 1,373.48 mi (2,210.40 km) |
| Namsos to Otopeni | 1,486.63 mi (2,392.50 km) |
| Namsos to Ovidiu | 1,543.65 mi (2,484.26 km) |
