| Altenburg to Obernburg am Main | 165.11 mi (265.71 km) |
| Altenburg to Obernkirchen | 167.49 mi (269.56 km) |
| Altenburg to Oberschleissheim | 192.91 mi (310.45 km) |
| Altenburg to Oberstdorf | 265.45 mi (427.21 km) |
| Altenburg to Obertraubling | 140.01 mi (225.33 km) |
| Altenburg to Obertshausen | 170.36 mi (274.17 km) |
| Altenburg to Oberursel | 177.53 mi (285.71 km) |
| Altenburg to Ochsenfurt | 139.31 mi (224.19 km) |
| Altenburg to Ochsenhausen | 230.02 mi (370.19 km) |
| Altenburg to Ochtrup | 240.25 mi (386.65 km) |
| Altenburg to Odenthal | 231.10 mi (371.93 km) |
| Altenburg to Oelde | 193.65 mi (311.64 km) |
| Altenburg to Oelsnitz | 40.96 mi (65.92 km) |
| Altenburg to Oer-Erkenschwick | 228.33 mi (367.45 km) |
| Altenburg to Oerlinghausen | 175.69 mi (282.74 km) |
