| Ocana to Orbetello | 782.62 mi (1,259.51 km) |
| Ocana to Oria | 1,112.60 mi (1,790.55 km) |
| Ocana to Oristano | 639.98 mi (1,029.95 km) |
| Ocana to Orta Nova | 1,009.39 mi (1,624.46 km) |
| Ocana to Orte | 842.17 mi (1,355.35 km) |
| Ocana to Ortona | 943.78 mi (1,518.87 km) |
| Ocana to Orvieto | 830.51 mi (1,336.57 km) |
| Ocana to Orzinuovi | 777.55 mi (1,251.35 km) |
| Ocana to Osimo | 907.13 mi (1,459.88 km) |
| Ocana to Ospitaletto | 788.16 mi (1,268.42 km) |
| Ocana to Ostuni | 1,108.70 mi (1,784.29 km) |
| Ocana to Ottaviano | 946.05 mi (1,522.52 km) |
| Ocana to Ovada | 698.84 mi (1,124.67 km) |
| Ocana to Ozieri | 659.84 mi (1,061.92 km) |
| Ocana to Paceco | 871.49 mi (1,402.53 km) |
