| Civita Castellana to Novi di Modena | 194.69 mi (313.32 km) |
| Civita Castellana to Novi Ligure | 248.81 mi (400.42 km) |
| Civita Castellana to Nuoro | 210.22 mi (338.32 km) |
| Civita Castellana to Occhiobello | 186.08 mi (299.47 km) |
| Civita Castellana to Oderzo | 240.80 mi (387.54 km) |
| Civita Castellana to Oggiono | 284.82 mi (458.37 km) |
| Civita Castellana to Olbia | 177.99 mi (286.44 km) |
| Civita Castellana to Oleggio | 295.57 mi (475.68 km) |
| Civita Castellana to Olgiate Comasco | 295.40 mi (475.41 km) |
| Civita Castellana to Olgiate Olona | 289.64 mi (466.12 km) |
| Civita Castellana to Omegna | 317.28 mi (510.61 km) |
| Civita Castellana to Opera | 266.08 mi (428.21 km) |
| Civita Castellana to Oppeano | 216.37 mi (348.21 km) |
| Civita Castellana to Orbassano | 307.22 mi (494.42 km) |
| Civita Castellana to Orbetello | 61.93 mi (99.66 km) |
