Gaziantep Kalesi, Gaziantep'in merkezindeki bir tepeye kurulmuş olan kale. Ne zaman inşa edildiği bilinmemekle birlikte, Romadöneminde gözlem amaçlı kullanıldığı bilinmektedir. Kale, tarih boyunca birçok kez tamir edilmiş ve son halini 2000'li yılların başında yapılan bir onarımla almıştır.
Daire biçimindeki kalenin çevresi 1200 metredir. Duvarları taş bloklardan yapılmış olup 12 kulesi ve burçları vardır. Kale, günümüzde "Gaziantep Savunması ve Kahramanlık Panoraması Müzesi" olarak kullanılmaktadır. Gaziantep'in gösterdiği savunma 45 dakikalık birbelgeselle kale içerisinde gösterilmektedir.
Gaziantep Castle
Gaziantep Citadel, located in the centre of the city displays the historic past and architectural style of the city.
Although the history of castle is a mystery, as a result of the excavations conducted there, bronze age settlement layers are thought to exist under the section existing on the surface of the soil. The caste was built as an observation tower during the Roman Period and was enlarged over the course of time. It achieved its present appearance after undergoing restoration work during the period of the Byzantine Emperor Justinian I in the 6th century AD. Approximately 100m in diameter and 1200 m in width, the castle incorporates 12 towers and bastions.
The ditch around the castle is 30 metres long and 10 metres deep (period of Justinian I). Access to castle is possible only via a bridge, which opens on the interior. It is said that one of the north towers of the castle is a Roman work of art and it is understood from the inscriptions that the ones on the west were constructed during the Memluk Period. As the inscription reveals further, the two towers on each side of the bridge were constructed during the period of Kanuni Sultan Süleyman.