| Treviso to Oberkirch | 278.01 mi (447.42 km) |
| Treviso to Obernburg am Main | 321.91 mi (518.06 km) |
| Treviso to Obernkirchen | 477.03 mi (767.70 km) |
| Treviso to Oberschleissheim | 180.93 mi (291.18 km) |
| Treviso to Oberstdorf | 152.03 mi (244.66 km) |
| Treviso to Obertraubling | 227.59 mi (366.28 km) |
| Treviso to Obertshausen | 342.19 mi (550.70 km) |
| Treviso to Oberursel | 355.98 mi (572.89 km) |
| Treviso to Ochsenfurt | 292.86 mi (471.31 km) |
| Treviso to Ochsenhausen | 198.07 mi (318.76 km) |
| Treviso to Ochtrup | 506.01 mi (814.34 km) |
| Treviso to Odenthal | 438.61 mi (705.87 km) |
| Treviso to Oelde | 464.53 mi (747.59 km) |
| Treviso to Oelsnitz | 327.83 mi (527.59 km) |
| Treviso to Oer-Erkenschwick | 470.95 mi (757.92 km) |
