| Gaziantep to Nuth | 1,814.40 mi (2,920.00 km) |
| Gaziantep to Oegstgeest | 1,901.42 mi (3,060.05 km) |
| Gaziantep to Oirschot | 1,851.80 mi (2,980.18 km) |
| Gaziantep to Oisterwijk | 1,857.80 mi (2,989.84 km) |
| Gaziantep to Oldebroek | 1,851.74 mi (2,980.08 km) |
| Gaziantep to Oldenzaal | 1,808.02 mi (2,909.73 km) |
| Gaziantep to Ommen | 1,833.49 mi (2,950.72 km) |
| Gaziantep to Oosterend | 1,860.32 mi (2,993.89 km) |
| Gaziantep to Oosterhout | 1,873.05 mi (3,014.38 km) |
| Gaziantep to Oosterwolde | 1,851.39 mi (2,979.52 km) |
| Gaziantep to Oostzaan | 1,891.06 mi (3,043.37 km) |
| Gaziantep to Opmeer | 1,895.20 mi (3,050.02 km) |
| Gaziantep to Oss | 1,849.49 mi (2,976.47 km) |
| Gaziantep to Oud-Beijerland | 1,895.49 mi (3,050.50 km) |
| Gaziantep to Oudenbosch | 1,885.28 mi (3,034.07 km) |
