Hassa is a municipality and district of Hatay Province, Turkey. Its area is 520 km, and its population is 56,675 (2022). It is on the eastern side of the Nur (Amanos) Mountains, looking towards the city of Gaziantep. It is on the Antakya-Malatya road. In the late 19th and early 20th century, Hassa was part of the Adana Vilayet of the Ottoman Empire. Hassa was a district in Cebel-i Bereket Province from 1923 to 1933 and then a part of Gaziantep Province until 1939.

Hassa is an olive-growing district. The trees were first brought there by Ottoman governor Derviş Paşa in the late 19th century. Hassa was heavily damaged by powerful earthquakes in February 2023 and subsequent aftershocks. The same year it recorded the hottest temparature so far in Turkey as of 2023 at 50 °C (122 °F)

Composition

There are 39 neighbourhoods in Hassa District: