| Notodden to Octeville | 813.46 mi (1,309.14 km) |
| Notodden to Oignies | 678.08 mi (1,091.27 km) |
| Notodden to Oissel | 780.29 mi (1,255.75 km) |
| Notodden to Olivet | 864.55 mi (1,391.35 km) |
| Notodden to Ollioules | 1,148.08 mi (1,847.66 km) |
| Notodden to Olonne-sur-Mer | 1,009.63 mi (1,624.84 km) |
| Notodden to Oloron-Sainte-Marie | 1,208.52 mi (1,944.92 km) |
| Notodden to Onet Village | 1,090.04 mi (1,754.25 km) |
| Notodden to Onnaing | 675.32 mi (1,086.82 km) |
| Notodden to Orange | 1,085.94 mi (1,747.65 km) |
| Notodden to Orchies | 674.26 mi (1,085.11 km) |
| Notodden to Orleans | 861.88 mi (1,387.07 km) |
| Notodden to Orly | 799.77 mi (1,287.10 km) |
| Notodden to Ormesson-sur-Marne | 795.04 mi (1,279.50 km) |
| Notodden to Orsay | 805.61 mi (1,296.50 km) |
