Onikişubat is a municipality and district of Kahramanmaraş Province, Turkey.[2] Its area is 2,429 km2,[3] and its population is 453,730 (2022).[1] The district Onikişubat was created at the 2013 reorganisation from part of the former central district of Kahramanmaraş, along with the new district Dulkadiroğlu.[4][5] It covers the western part of the agglomeration of Kahramanmaraş and the adjacent countryside. The name Kahramanmaraş is reserved for the metropolitan municipality.
"Onikişubat" means "12 February"; it refers to the date of recovery of Kahramanmaraş during the Turkish War of Independence in 1920.