| Namsos to Octeville | 1,132.78 mi (1,823.03 km) |
| Namsos to Oignies | 1,015.26 mi (1,633.90 km) |
| Namsos to Oissel | 1,112.89 mi (1,791.02 km) |
| Namsos to Olivet | 1,201.88 mi (1,934.23 km) |
| Namsos to Ollioules | 1,490.05 mi (2,398.00 km) |
| Namsos to Olonne-sur-Mer | 1,336.89 mi (2,151.51 km) |
| Namsos to Oloron-Sainte-Marie | 1,544.16 mi (2,485.08 km) |
| Namsos to Onet Village | 1,430.94 mi (2,302.88 km) |
| Namsos to Onnaing | 1,014.26 mi (1,632.29 km) |
| Namsos to Orange | 1,428.28 mi (2,298.59 km) |
| Namsos to Orchies | 1,012.16 mi (1,628.91 km) |
| Namsos to Orleans | 1,199.19 mi (1,929.91 km) |
| Namsos to Orly | 1,137.42 mi (1,830.50 km) |
| Namsos to Ormesson-sur-Marne | 1,133.02 mi (1,823.42 km) |
| Namsos to Orsay | 1,142.76 mi (1,839.09 km) |
