| Alzenau in Unterfranken to Obernburg am Main | 16.01 mi (25.77 km) |
| Alzenau in Unterfranken to Obernkirchen | 152.00 mi (244.62 km) |
| Alzenau in Unterfranken to Oberschleissheim | 168.85 mi (271.73 km) |
| Alzenau in Unterfranken to Oberstdorf | 191.71 mi (308.52 km) |
| Alzenau in Unterfranken to Obertraubling | 158.49 mi (255.07 km) |
| Alzenau in Unterfranken to Obertshausen | 10.35 mi (16.66 km) |
| Alzenau in Unterfranken to Oberursel | 23.66 mi (38.07 km) |
| Alzenau in Unterfranken to Ochsenfurt | 53.04 mi (85.36 km) |
| Alzenau in Unterfranken to Ochsenhausen | 143.46 mi (230.88 km) |
| Alzenau in Unterfranken to Ochtrup | 168.68 mi (271.46 km) |
| Alzenau in Unterfranken to Odenthal | 108.57 mi (174.73 km) |
| Alzenau in Unterfranken to Oelde | 128.41 mi (206.66 km) |
| Alzenau in Unterfranken to Oelsnitz | 139.09 mi (223.85 km) |
| Alzenau in Unterfranken to Oer-Erkenschwick | 134.61 mi (216.64 km) |
| Alzenau in Unterfranken to Oerlinghausen | 132.42 mi (213.11 km) |
