| Gaziantep to Oberkirch | 1,668.91 mi (2,685.84 km) |
| Gaziantep to Obernburg am Main | 1,653.89 mi (2,661.68 km) |
| Gaziantep to Obernkirchen | 1,722.84 mi (2,772.65 km) |
| Gaziantep to Oberschleissheim | 1,511.60 mi (2,432.68 km) |
| Gaziantep to Oberstdorf | 1,548.69 mi (2,492.37 km) |
| Gaziantep to Obertraubling | 1,505.11 mi (2,422.24 km) |
| Gaziantep to Obertshausen | 1,672.38 mi (2,691.43 km) |
| Gaziantep to Oberursel | 1,686.41 mi (2,714.01 km) |
| Gaziantep to Ochsenfurt | 1,610.66 mi (2,592.11 km) |
| Gaziantep to Ochsenhausen | 1,577.55 mi (2,538.82 km) |
| Gaziantep to Ochtrup | 1,794.99 mi (2,888.76 km) |
| Gaziantep to Odenthal | 1,766.94 mi (2,843.61 km) |
| Gaziantep to Oelde | 1,747.26 mi (2,811.95 km) |
| Gaziantep to Oelsnitz | 1,547.94 mi (2,491.16 km) |
| Gaziantep to Oer-Erkenschwick | 1,777.32 mi (2,860.32 km) |
