| Saint-Ouen to Obernburg am Main | 312.75 mi (503.32 km) |
| Saint-Ouen to Obernkirchen | 376.90 mi (606.56 km) |
| Saint-Ouen to Oberschleissheim | 424.22 mi (682.71 km) |
| Saint-Ouen to Oberstdorf | 380.40 mi (612.19 km) |
| Saint-Ouen to Obertraubling | 445.96 mi (717.70 km) |
| Saint-Ouen to Obertshausen | 302.29 mi (486.49 km) |
| Saint-Ouen to Oberursel | 293.56 mi (472.45 km) |
| Saint-Ouen to Ochsenfurt | 352.07 mi (566.60 km) |
| Saint-Ouen to Ochsenhausen | 353.28 mi (568.55 km) |
| Saint-Ouen to Ochtrup | 311.65 mi (501.55 km) |
| Saint-Ouen to Odenthal | 258.07 mi (415.32 km) |
| Saint-Ouen to Oelde | 326.04 mi (524.72 km) |
| Saint-Ouen to Oelsnitz | 451.47 mi (726.58 km) |
| Saint-Ouen to Oer-Erkenschwick | 287.48 mi (462.65 km) |
| Saint-Ouen to Oerlinghausen | 349.35 mi (562.22 km) |
