| Dumfries to Oerlinghausen | 546.81 mi (880.01 km) |
| Dumfries to Oestrich-Winkel | 599.21 mi (964.34 km) |
| Dumfries to Offenburg | 670.37 mi (1,078.85 km) |
| Dumfries to Oftersheim | 647.51 mi (1,042.06 km) |
| Dumfries to Ohrdruf | 663.23 mi (1,067.37 km) |
| Dumfries to Ohringen | 686.18 mi (1,104.30 km) |
| Dumfries to Olbernhau | 766.61 mi (1,233.74 km) |
| Dumfries to Olching | 793.99 mi (1,277.80 km) |
| Dumfries to Oldenburg | 496.15 mi (798.47 km) |
| Dumfries to Oldenburg in Holstein | 579.98 mi (933.39 km) |
| Dumfries to Olfen | 507.73 mi (817.12 km) |
| Dumfries to Olpe | 550.49 mi (885.93 km) |
| Dumfries to Olsberg | 561.27 mi (903.28 km) |
| Dumfries to Oranienburg | 701.90 mi (1,129.59 km) |
| Dumfries to Ortenberg | 620.59 mi (998.74 km) |
