| Ribadeo to Orbetello | 923.77 mi (1,486.67 km) |
| Ribadeo to Oria | 1,278.92 mi (2,058.23 km) |
| Ribadeo to Oristano | 842.74 mi (1,356.26 km) |
| Ribadeo to Orta Nova | 1,166.47 mi (1,877.26 km) |
| Ribadeo to Orte | 982.25 mi (1,580.78 km) |
| Ribadeo to Ortona | 1,084.50 mi (1,745.34 km) |
| Ribadeo to Orvieto | 965.23 mi (1,553.39 km) |
| Ribadeo to Orzinuovi | 845.19 mi (1,360.21 km) |
| Ribadeo to Osimo | 1,025.85 mi (1,650.95 km) |
| Ribadeo to Ospitaletto | 852.53 mi (1,372.02 km) |
| Ribadeo to Ostuni | 1,271.64 mi (2,046.50 km) |
| Ribadeo to Ottaviano | 1,113.78 mi (1,792.45 km) |
| Ribadeo to Ovada | 781.03 mi (1,256.95 km) |
| Ribadeo to Ozieri | 846.38 mi (1,362.11 km) |
| Ribadeo to Paceco | 1,091.43 mi (1,756.48 km) |
