| Issum to Obernburg am Main | 167.10 mi (268.93 km) |
| Issum to Obernkirchen | 125.36 mi (201.75 km) |
| Issum to Oberschleissheim | 322.41 mi (518.86 km) |
| Issum to Oberstdorf | 333.60 mi (536.87 km) |
| Issum to Obertraubling | 309.67 mi (498.37 km) |
| Issum to Obertshausen | 146.34 mi (235.51 km) |
| Issum to Oberursel | 131.64 mi (211.85 km) |
| Issum to Ochsenfurt | 206.27 mi (331.96 km) |
| Issum to Ochsenhausen | 286.41 mi (460.93 km) |
| Issum to Ochtrup | 56.49 mi (90.92 km) |
| Issum to Odenthal | 46.01 mi (74.05 km) |
| Issum to Oelde | 76.70 mi (123.43 km) |
| Issum to Oelsnitz | 261.51 mi (420.87 km) |
| Issum to Oer-Erkenschwick | 36.22 mi (58.29 km) |
| Issum to Oerlinghausen | 100.39 mi (161.56 km) |
