| Carcassonne to Obernburg am Main | 559.92 mi (901.11 km) |
| Carcassonne to Obernkirchen | 699.59 mi (1,125.88 km) |
| Carcassonne to Oberschleissheim | 564.02 mi (907.70 km) |
| Carcassonne to Oberstdorf | 481.93 mi (775.59 km) |
| Carcassonne to Obertraubling | 615.13 mi (989.96 km) |
| Carcassonne to Obertshausen | 564.35 mi (908.23 km) |
| Carcassonne to Oberursel | 565.68 mi (910.38 km) |
| Carcassonne to Ochsenfurt | 576.47 mi (927.73 km) |
| Carcassonne to Ochsenhausen | 497.13 mi (800.06 km) |
| Carcassonne to Ochtrup | 660.65 mi (1,063.21 km) |
| Carcassonne to Odenthal | 584.84 mi (941.21 km) |
| Carcassonne to Oelde | 653.88 mi (1,052.32 km) |
| Carcassonne to Oelsnitz | 679.62 mi (1,093.74 km) |
| Carcassonne to Oer-Erkenschwick | 625.67 mi (1,006.92 km) |
| Carcassonne to Oerlinghausen | 672.22 mi (1,081.84 km) |
