| Meerssen to Oberkirch | 193.03 mi (310.66 km) |
| Meerssen to Obernburg am Main | 165.93 mi (267.04 km) |
| Meerssen to Obernkirchen | 173.14 mi (278.65 km) |
| Meerssen to Oberschleissheim | 317.75 mi (511.37 km) |
| Meerssen to Oberstdorf | 315.39 mi (507.58 km) |
| Meerssen to Obertraubling | 314.53 mi (506.19 km) |
| Meerssen to Obertshausen | 146.82 mi (236.29 km) |
| Meerssen to Oberursel | 132.69 mi (213.54 km) |
| Meerssen to Ochsenfurt | 208.77 mi (335.99 km) |
| Meerssen to Ochsenhausen | 270.61 mi (435.51 km) |
| Meerssen to Ochtrup | 110.16 mi (177.28 km) |
| Meerssen to Odenthal | 60.26 mi (96.98 km) |
| Meerssen to Oelde | 122.43 mi (197.03 km) |
| Meerssen to Oelsnitz | 282.79 mi (455.11 km) |
| Meerssen to Oer-Erkenschwick | 83.25 mi (133.98 km) |
