| Vianden to Oberkirch | 128.53 mi (206.85 km) |
| Vianden to Obernburg am Main | 130.76 mi (210.44 km) |
| Vianden to Obernkirchen | 204.72 mi (329.46 km) |
| Vianden to Oberschleissheim | 268.85 mi (432.68 km) |
| Vianden to Oberstdorf | 254.73 mi (409.95 km) |
| Vianden to Obertraubling | 275.83 mi (443.91 km) |
| Vianden to Obertshausen | 116.97 mi (188.25 km) |
| Vianden to Oberursel | 106.72 mi (171.74 km) |
| Vianden to Ochsenfurt | 173.23 mi (278.79 km) |
| Vianden to Ochsenhausen | 212.77 mi (342.41 km) |
| Vianden to Ochtrup | 162.67 mi (261.79 km) |
| Vianden to Odenthal | 85.85 mi (138.17 km) |
| Vianden to Oelde | 156.19 mi (251.36 km) |
| Vianden to Oelsnitz | 265.73 mi (427.65 km) |
| Vianden to Oer-Erkenschwick | 126.54 mi (203.65 km) |
