| Donauworth to Oestrich-Winkel | 154.74 mi (249.04 km) |
| Donauworth to Offenburg | 132.01 mi (212.45 km) |
| Donauworth to Oftersheim | 110.52 mi (177.87 km) |
| Donauworth to Ohrdruf | 147.07 mi (236.68 km) |
| Donauworth to Ohringen | 68.36 mi (110.01 km) |
| Donauworth to Olbernhau | 176.87 mi (284.64 km) |
| Donauworth to Olching | 41.88 mi (67.40 km) |
| Donauworth to Oldenburg | 327.00 mi (526.25 km) |
| Donauworth to Oldenburg in Holstein | 386.94 mi (622.72 km) |
| Donauworth to Olfen | 257.37 mi (414.20 km) |
| Donauworth to Olpe | 207.53 mi (333.99 km) |
| Donauworth to Olsberg | 209.97 mi (337.92 km) |
| Donauworth to Oranienburg | 299.68 mi (482.28 km) |
| Donauworth to Ortenberg | 138.59 mi (223.04 km) |
| Donauworth to Oschatz | 206.80 mi (332.82 km) |
