| Hudiksvall to Octeville | 1,102.60 mi (1,774.46 km) |
| Hudiksvall to Oignies | 945.29 mi (1,521.30 km) |
| Hudiksvall to Oissel | 1,054.78 mi (1,697.50 km) |
| Hudiksvall to Olivet | 1,127.62 mi (1,814.72 km) |
| Hudiksvall to Ollioules | 1,365.03 mi (2,196.80 km) |
| Hudiksvall to Olonne-sur-Mer | 1,288.65 mi (2,073.88 km) |
| Hudiksvall to Oloron-Sainte-Marie | 1,471.37 mi (2,367.94 km) |
| Hudiksvall to Onet Village | 1,336.02 mi (2,150.11 km) |
| Hudiksvall to Onnaing | 937.44 mi (1,508.67 km) |
| Hudiksvall to Orange | 1,314.13 mi (2,114.89 km) |
| Hudiksvall to Orchies | 939.60 mi (1,512.15 km) |
| Hudiksvall to Orleans | 1,125.05 mi (1,810.60 km) |
| Hudiksvall to Orly | 1,063.12 mi (1,710.93 km) |
| Hudiksvall to Ormesson-sur-Marne | 1,057.54 mi (1,701.95 km) |
| Hudiksvall to Orsay | 1,070.20 mi (1,722.32 km) |
