| Cat to Orbetello | 1,555.77 mi (2,503.76 km) |
| Cat to Oria | 1,232.57 mi (1,983.62 km) |
| Cat to Oristano | 1,710.85 mi (2,753.34 km) |
| Cat to Orta Nova | 1,328.69 mi (2,138.31 km) |
| Cat to Orte | 1,495.93 mi (2,407.46 km) |
| Cat to Ortona | 1,393.45 mi (2,242.54 km) |
| Cat to Orvieto | 1,509.36 mi (2,429.08 km) |
| Cat to Orzinuovi | 1,620.16 mi (2,607.39 km) |
| Cat to Osimo | 1,439.89 mi (2,317.28 km) |
| Cat to Ospitaletto | 1,614.03 mi (2,597.54 km) |
| Cat to Ostuni | 1,233.94 mi (1,985.83 km) |
| Cat to Ottaviano | 1,395.22 mi (2,245.39 km) |
| Cat to Ovada | 1,681.28 mi (2,705.75 km) |
| Cat to Ozieri | 1,682.02 mi (2,706.95 km) |
| Cat to Paceco | 1,528.61 mi (2,460.06 km) |
