| Treviso to Oerlinghausen | 464.18 mi (747.03 km) |
| Treviso to Oestrich-Winkel | 357.81 mi (575.84 km) |
| Treviso to Offenburg | 279.92 mi (450.48 km) |
| Treviso to Oftersheim | 307.20 mi (494.39 km) |
| Treviso to Ohrdruf | 362.92 mi (584.07 km) |
| Treviso to Ohringen | 275.34 mi (443.12 km) |
| Treviso to Olbernhau | 348.72 mi (561.21 km) |
| Treviso to Olching | 180.03 mi (289.72 km) |
| Treviso to Oldenburg | 546.86 mi (880.09 km) |
| Treviso to Oldenburg in Holstein | 599.14 mi (964.23 km) |
| Treviso to Olfen | 472.53 mi (760.46 km) |
| Treviso to Olpe | 420.95 mi (677.46 km) |
| Treviso to Olsberg | 428.23 mi (689.16 km) |
| Treviso to Oranienburg | 491.37 mi (790.79 km) |
| Treviso to Ortenberg | 355.47 mi (572.07 km) |
