| Castellaneta to Oria | 37.88 mi (60.96 km) |
| Castellaneta to Oristano | 442.46 mi (712.07 km) |
| Castellaneta to Orta Nova | 79.90 mi (128.59 km) |
| Castellaneta to Orte | 266.83 mi (429.41 km) |
| Castellaneta to Ortona | 176.79 mi (284.51 km) |
| Castellaneta to Orvieto | 287.52 mi (462.71 km) |
| Castellaneta to Orzinuovi | 482.89 mi (777.14 km) |
| Castellaneta to Osimo | 264.71 mi (426.01 km) |
| Castellaneta to Ospitaletto | 484.89 mi (780.35 km) |
| Castellaneta to Ostuni | 34.75 mi (55.93 km) |
| Castellaneta to Ottaviano | 129.42 mi (208.29 km) |
| Castellaneta to Ovada | 503.62 mi (810.50 km) |
| Castellaneta to Ozieri | 415.83 mi (669.21 km) |
| Castellaneta to Paceco | 297.32 mi (478.48 km) |
| Castellaneta to Pachino | 288.09 mi (463.64 km) |
