| Gaziantep to Nasaud | 966.97 mi (1,556.18 km) |
| Gaziantep to Navodari | 679.20 mi (1,093.07 km) |
| Gaziantep to Negresti-Oas | 1,028.10 mi (1,654.56 km) |
| Gaziantep to Nehoiu | 810.62 mi (1,304.57 km) |
| Gaziantep to Ocna Mures | 946.93 mi (1,523.93 km) |
| Gaziantep to Odobesti | 803.13 mi (1,292.51 km) |
| Gaziantep to Odorheiu Secuiesc | 890.73 mi (1,433.49 km) |
| Gaziantep to Oltenita | 742.76 mi (1,195.35 km) |
| Gaziantep to Onesti | 837.31 mi (1,347.52 km) |
| Gaziantep to Oradea | 1,048.67 mi (1,687.67 km) |
| Gaziantep to Orastie | 950.25 mi (1,529.28 km) |
| Gaziantep to Oravita | 983.43 mi (1,582.68 km) |
| Gaziantep to Orsova | 942.45 mi (1,516.73 km) |
| Gaziantep to Otelu Rosu | 971.95 mi (1,564.20 km) |
| Gaziantep to Otopeni | 784.43 mi (1,262.42 km) |
