| Ravenna to Oerlinghausen | 546.34 mi (879.25 km) |
| Ravenna to Oestrich-Winkel | 433.12 mi (697.05 km) |
| Ravenna to Offenburg | 345.75 mi (556.43 km) |
| Ravenna to Oftersheim | 382.45 mi (615.49 km) |
| Ravenna to Ohrdruf | 448.25 mi (721.39 km) |
| Ravenna to Ohringen | 354.31 mi (570.20 km) |
| Ravenna to Olbernhau | 435.07 mi (700.18 km) |
| Ravenna to Olching | 264.83 mi (426.20 km) |
| Ravenna to Oldenburg | 629.52 mi (1,013.11 km) |
| Ravenna to Oldenburg in Holstein | 685.45 mi (1,103.13 km) |
| Ravenna to Olfen | 551.01 mi (886.76 km) |
| Ravenna to Olpe | 499.00 mi (803.07 km) |
| Ravenna to Olsberg | 508.96 mi (819.08 km) |
| Ravenna to Oranienburg | 578.04 mi (930.27 km) |
| Ravenna to Ortenberg | 435.89 mi (701.49 km) |
