| Orbetello to Oberkirch | 447.40 mi (720.02 km) |
| Orbetello to Obernburg am Main | 520.80 mi (838.15 km) |
| Orbetello to Obernkirchen | 685.94 mi (1,103.92 km) |
| Orbetello to Oberschleissheim | 401.84 mi (646.70 km) |
| Orbetello to Oberstdorf | 346.43 mi (557.52 km) |
| Orbetello to Obertraubling | 453.27 mi (729.46 km) |
| Orbetello to Obertshausen | 539.04 mi (867.50 km) |
| Orbetello to Oberursel | 550.88 mi (886.56 km) |
| Orbetello to Ochsenfurt | 501.21 mi (806.62 km) |
| Orbetello to Ochsenhausen | 394.00 mi (634.08 km) |
| Orbetello to Ochtrup | 700.30 mi (1,127.02 km) |
| Orbetello to Odenthal | 624.40 mi (1,004.87 km) |
| Orbetello to Oelde | 664.67 mi (1,069.68 km) |
| Orbetello to Oelsnitz | 553.04 mi (890.02 km) |
| Orbetello to Oer-Erkenschwick | 662.39 mi (1,066.02 km) |
