| Riccione Marina to Orbetello | 129.86 mi (208.99 km) |
| Riccione Marina to Oria | 351.21 mi (565.22 km) |
| Riccione Marina to Oristano | 351.34 mi (565.42 km) |
| Riccione Marina to Orta Nova | 241.22 mi (388.20 km) |
| Riccione Marina to Orte | 107.21 mi (172.54 km) |
| Riccione Marina to Ortona | 144.12 mi (231.94 km) |
| Riccione Marina to Orvieto | 92.61 mi (149.05 km) |
| Riccione Marina to Orzinuovi | 164.78 mi (265.19 km) |
| Riccione Marina to Osimo | 54.82 mi (88.22 km) |
| Riccione Marina to Ospitaletto | 165.87 mi (266.94 km) |
| Riccione Marina to Ostuni | 338.07 mi (544.07 km) |
| Riccione Marina to Ottaviano | 236.75 mi (381.00 km) |
| Riccione Marina to Ovada | 202.76 mi (326.30 km) |
| Riccione Marina to Ozieri | 300.62 mi (483.81 km) |
| Riccione Marina to Paceco | 415.75 mi (669.08 km) |
