| Cenon to Obernburg am Main | 568.07 mi (914.22 km) |
| Cenon to Obernkirchen | 674.64 mi (1,085.73 km) |
| Cenon to Oberschleissheim | 619.92 mi (997.67 km) |
| Cenon to Oberstdorf | 546.28 mi (879.16 km) |
| Cenon to Obertraubling | 662.07 mi (1,065.49 km) |
| Cenon to Obertshausen | 565.74 mi (910.48 km) |
| Cenon to Oberursel | 562.29 mi (904.92 km) |
| Cenon to Ochsenfurt | 596.36 mi (959.75 km) |
| Cenon to Ochsenhausen | 545.37 mi (877.69 km) |
| Cenon to Ochtrup | 617.77 mi (994.20 km) |
| Cenon to Odenthal | 553.80 mi (891.25 km) |
| Cenon to Oelde | 624.60 mi (1,005.19 km) |
| Cenon to Oelsnitz | 703.55 mi (1,132.26 km) |
| Cenon to Oer-Erkenschwick | 589.16 mi (948.17 km) |
| Cenon to Oerlinghausen | 646.46 mi (1,040.37 km) |
