Gaziantep, previously and still informally called Aintab or Antep, is the capital of Gaziantep Province, in the westernmost part of Turkey's Southeastern Anatolia Region, approximately 185 kilometres east of Adana and 97 kilometres north of Aleppo, Syria. It is probably located on the site of ancient Antiochia ad Taurum, and is near ancient Zeugma.
As of the 31/12/2019 last estimation, the Metropolitan Province was home to 2,069,364 inhabitants whom 1,721,475 lived in the built-up area made of 2 urban districts of Şahinbey and Şehitkamil, as Oğuzeli is not conurbated. It is the sixth-most populous city in Turkey.