| Rosignano Marittimo to Octeville | 717.35 mi (1,154.47 km) |
| Rosignano Marittimo to Oignies | 601.73 mi (968.40 km) |
| Rosignano Marittimo to Oissel | 606.06 mi (975.36 km) |
| Rosignano Marittimo to Olivet | 515.65 mi (829.85 km) |
| Rosignano Marittimo to Ollioules | 233.08 mi (375.11 km) |
| Rosignano Marittimo to Olonne-sur-Mer | 635.52 mi (1,022.78 km) |
| Rosignano Marittimo to Oloron-Sainte-Marie | 556.62 mi (895.79 km) |
| Rosignano Marittimo to Onet Village | 397.55 mi (639.79 km) |
| Rosignano Marittimo to Onnaing | 581.06 mi (935.13 km) |
| Rosignano Marittimo to Orange | 286.76 mi (461.50 km) |
| Rosignano Marittimo to Orchies | 595.23 mi (957.94 km) |
| Rosignano Marittimo to Orleans | 516.80 mi (831.71 km) |
| Rosignano Marittimo to Orly | 534.34 mi (859.94 km) |
| Rosignano Marittimo to Ormesson-sur-Marne | 531.25 mi (854.96 km) |
| Rosignano Marittimo to Orsay | 539.45 mi (868.16 km) |
