| Vianen to Oberkirch | 272.32 mi (438.25 km) |
| Vianen to Obernburg am Main | 230.00 mi (370.15 km) |
| Vianen to Obernkirchen | 171.53 mi (276.05 km) |
| Vianen to Oberschleissheim | 385.25 mi (620.00 km) |
| Vianen to Oberstdorf | 391.50 mi (630.05 km) |
| Vianen to Obertraubling | 373.95 mi (601.82 km) |
| Vianen to Obertshausen | 209.38 mi (336.96 km) |
| Vianen to Oberursel | 194.62 mi (313.20 km) |
| Vianen to Ochsenfurt | 270.08 mi (434.66 km) |
| Vianen to Ochsenhausen | 345.28 mi (555.68 km) |
| Vianen to Ochtrup | 90.05 mi (144.91 km) |
| Vianen to Odenthal | 108.76 mi (175.03 km) |
| Vianen to Oelde | 130.41 mi (209.87 km) |
| Vianen to Oelsnitz | 324.37 mi (522.02 km) |
| Vianen to Oer-Erkenschwick | 94.84 mi (152.64 km) |
