| Huelva to Oerlinghausen | 1,268.64 mi (2,041.68 km) |
| Huelva to Oestrich-Winkel | 1,151.09 mi (1,852.50 km) |
| Huelva to Offenburg | 1,077.43 mi (1,733.95 km) |
| Huelva to Oftersheim | 1,140.70 mi (1,835.78 km) |
| Huelva to Ohrdruf | 1,278.58 mi (2,057.68 km) |
| Huelva to Ohringen | 1,164.61 mi (1,874.26 km) |
| Huelva to Olbernhau | 1,361.70 mi (2,191.45 km) |
| Huelva to Olching | 1,191.36 mi (1,917.31 km) |
| Huelva to Oldenburg | 1,317.29 mi (2,119.97 km) |
| Huelva to Oldenburg in Holstein | 1,449.30 mi (2,332.42 km) |
| Huelva to Olfen | 1,219.30 mi (1,962.27 km) |
| Huelva to Olpe | 1,196.17 mi (1,925.05 km) |
| Huelva to Olsberg | 1,232.24 mi (1,983.11 km) |
| Huelva to Oranienburg | 1,446.14 mi (2,327.34 km) |
| Huelva to Ortenberg | 1,201.88 mi (1,934.24 km) |
