| Carcassonne to Oestrich-Winkel | 540.03 mi (869.09 km) |
| Carcassonne to Offenburg | 451.56 mi (726.72 km) |
| Carcassonne to Oftersheim | 519.02 mi (835.28 km) |
| Carcassonne to Ohrdruf | 657.12 mi (1,057.53 km) |
| Carcassonne to Ohringen | 536.33 mi (863.14 km) |
| Carcassonne to Olbernhau | 729.24 mi (1,173.60 km) |
| Carcassonne to Olching | 552.61 mi (889.34 km) |
| Carcassonne to Oldenburg | 737.01 mi (1,186.11 km) |
| Carcassonne to Oldenburg in Holstein | 857.76 mi (1,380.43 km) |
| Carcassonne to Olfen | 632.65 mi (1,018.16 km) |
| Carcassonne to Olpe | 597.44 mi (961.48 km) |
| Carcassonne to Olsberg | 631.11 mi (1,015.67 km) |
| Carcassonne to Oranienburg | 827.78 mi (1,332.18 km) |
| Carcassonne to Ortenberg | 586.32 mi (943.60 km) |
| Carcassonne to Oschatz | 751.43 mi (1,209.30 km) |
