| Orimattila to Oegstgeest | 998.89 mi (1,607.56 km) |
| Orimattila to Oirschot | 1,008.32 mi (1,622.73 km) |
| Orimattila to Oisterwijk | 1,007.00 mi (1,620.61 km) |
| Orimattila to Oldebroek | 943.14 mi (1,517.83 km) |
| Orimattila to Oldenzaal | 919.62 mi (1,479.98 km) |
| Orimattila to Ommen | 924.64 mi (1,488.06 km) |
| Orimattila to Oosterend | 911.27 mi (1,466.54 km) |
| Orimattila to Oosterhout | 1,014.04 mi (1,631.94 km) |
| Orimattila to Oosterwolde | 905.19 mi (1,456.76 km) |
| Orimattila to Oostzaan | 974.23 mi (1,567.87 km) |
| Orimattila to Opmeer | 959.37 mi (1,543.96 km) |
| Orimattila to Oss | 988.48 mi (1,590.81 km) |
| Orimattila to Oud-Beijerland | 1,018.90 mi (1,639.76 km) |
| Orimattila to Oudenbosch | 1,026.56 mi (1,652.09 km) |
| Orimattila to Oudewater | 995.12 mi (1,601.49 km) |
