| Seesen to Oberkirch | 249.91 mi (402.19 km) |
| Seesen to Obernburg am Main | 148.88 mi (239.60 km) |
| Seesen to Obernkirchen | 51.89 mi (83.52 km) |
| Seesen to Oberschleissheim | 259.12 mi (417.02 km) |
| Seesen to Oberstdorf | 309.81 mi (498.58 km) |
| Seesen to Obertraubling | 220.36 mi (354.64 km) |
| Seesen to Obertshausen | 139.09 mi (223.84 km) |
| Seesen to Oberursel | 135.90 mi (218.70 km) |
| Seesen to Ochsenfurt | 155.06 mi (249.54 km) |
| Seesen to Ochsenhausen | 264.20 mi (425.18 km) |
| Seesen to Ochtrup | 128.78 mi (207.25 km) |
| Seesen to Odenthal | 144.55 mi (232.62 km) |
| Seesen to Oelde | 86.64 mi (139.43 km) |
| Seesen to Oelsnitz | 133.52 mi (214.88 km) |
| Seesen to Oer-Erkenschwick | 126.36 mi (203.36 km) |
