| Debrecen to Oberkirch | 629.32 mi (1,012.79 km) |
| Debrecen to Obernburg am Main | 591.21 mi (951.47 km) |
| Debrecen to Obernkirchen | 644.99 mi (1,038.01 km) |
| Debrecen to Oberschleissheim | 468.97 mi (754.73 km) |
| Debrecen to Oberstdorf | 530.17 mi (853.22 km) |
| Debrecen to Obertraubling | 446.64 mi (718.81 km) |
| Debrecen to Obertshausen | 607.73 mi (978.05 km) |
| Debrecen to Oberursel | 620.81 mi (999.09 km) |
| Debrecen to Ochsenfurt | 548.16 mi (882.18 km) |
| Debrecen to Ochsenhausen | 543.35 mi (874.45 km) |
| Debrecen to Ochtrup | 718.29 mi (1,155.97 km) |
| Debrecen to Odenthal | 696.46 mi (1,120.84 km) |
| Debrecen to Oelde | 670.97 mi (1,079.83 km) |
| Debrecen to Oelsnitz | 473.20 mi (761.53 km) |
| Debrecen to Oer-Erkenschwick | 702.80 mi (1,131.05 km) |
