| Ceyhan to Oberkirch | 1,602.33 mi (2,578.71 km) |
| Ceyhan to Obernburg am Main | 1,590.98 mi (2,560.43 km) |
| Ceyhan to Obernkirchen | 1,665.78 mi (2,680.81 km) |
| Ceyhan to Oberschleissheim | 1,446.40 mi (2,327.75 km) |
| Ceyhan to Oberstdorf | 1,480.65 mi (2,382.88 km) |
| Ceyhan to Obertraubling | 1,442.17 mi (2,320.95 km) |
| Ceyhan to Obertshausen | 1,609.81 mi (2,590.74 km) |
| Ceyhan to Oberursel | 1,624.00 mi (2,613.58 km) |
| Ceyhan to Ochsenfurt | 1,547.91 mi (2,491.11 km) |
| Ceyhan to Ochsenhausen | 1,510.90 mi (2,431.56 km) |
| Ceyhan to Ochtrup | 1,736.41 mi (2,794.48 km) |
| Ceyhan to Odenthal | 1,705.58 mi (2,744.86 km) |
| Ceyhan to Oelde | 1,688.45 mi (2,717.30 km) |
| Ceyhan to Oelsnitz | 1,488.76 mi (2,395.92 km) |
| Ceyhan to Oer-Erkenschwick | 1,717.46 mi (2,763.98 km) |
