| Seneffe to Obernburg am Main | 221.59 mi (356.61 km) |
| Seneffe to Obernkirchen | 241.52 mi (388.69 km) |
| Seneffe to Oberschleissheim | 364.69 mi (586.92 km) |
| Seneffe to Oberstdorf | 348.17 mi (560.33 km) |
| Seneffe to Obertraubling | 369.45 mi (594.57 km) |
| Seneffe to Obertshausen | 204.80 mi (329.59 km) |
| Seneffe to Oberursel | 192.02 mi (309.03 km) |
| Seneffe to Ochsenfurt | 264.89 mi (426.30 km) |
| Seneffe to Ochsenhausen | 307.79 mi (495.35 km) |
| Seneffe to Ochtrup | 171.54 mi (276.07 km) |
| Seneffe to Odenthal | 129.90 mi (209.05 km) |
| Seneffe to Oelde | 191.27 mi (307.82 km) |
| Seneffe to Oelsnitz | 348.04 mi (560.12 km) |
| Seneffe to Oer-Erkenschwick | 151.08 mi (243.14 km) |
| Seneffe to Oerlinghausen | 215.11 mi (346.18 km) |
