| Hildesheim to Obernburg am Main | 163.43 mi (263.02 km) |
| Hildesheim to Obernkirchen | 36.14 mi (58.16 km) |
| Hildesheim to Oberschleissheim | 278.77 mi (448.64 km) |
| Hildesheim to Oberstdorf | 327.85 mi (527.63 km) |
| Hildesheim to Obertraubling | 240.54 mi (387.11 km) |
| Hildesheim to Obertshausen | 151.87 mi (244.41 km) |
| Hildesheim to Oberursel | 147.06 mi (236.67 km) |
| Hildesheim to Ochsenfurt | 172.81 mi (278.11 km) |
| Hildesheim to Ochsenhausen | 281.75 mi (453.43 km) |
| Hildesheim to Ochtrup | 116.98 mi (188.26 km) |
| Hildesheim to Odenthal | 144.01 mi (231.77 km) |
| Hildesheim to Oelde | 79.65 mi (128.18 km) |
| Hildesheim to Oelsnitz | 153.34 mi (246.78 km) |
| Hildesheim to Oer-Erkenschwick | 120.31 mi (193.61 km) |
| Hildesheim to Oerlinghausen | 55.97 mi (90.07 km) |
