| Port-de-Bouc to Oestrich-Winkel | 477.38 mi (768.27 km) |
| Port-de-Bouc to Offenburg | 377.19 mi (607.04 km) |
| Port-de-Bouc to Oftersheim | 446.26 mi (718.19 km) |
| Port-de-Bouc to Ohrdruf | 579.23 mi (932.18 km) |
| Port-de-Bouc to Ohringen | 454.43 mi (731.34 km) |
| Port-de-Bouc to Olbernhau | 636.46 mi (1,024.28 km) |
| Port-de-Bouc to Olching | 449.88 mi (724.02 km) |
| Port-de-Bouc to Oldenburg | 688.86 mi (1,108.61 km) |
| Port-de-Bouc to Oldenburg in Holstein | 798.36 mi (1,284.84 km) |
| Port-de-Bouc to Olfen | 584.95 mi (941.38 km) |
| Port-de-Bouc to Olpe | 542.49 mi (873.05 km) |
| Port-de-Bouc to Olsberg | 572.61 mi (921.52 km) |
| Port-de-Bouc to Oranienburg | 748.73 mi (1,204.97 km) |
| Port-de-Bouc to Ortenberg | 517.03 mi (832.08 km) |
| Port-de-Bouc to Oschatz | 663.96 mi (1,068.53 km) |
