Hailakandi district (Pron:ˈhaɪləˌkændi or ˈhaɪləˌkʌndi) is one of the 27 districts of Assam state in north-eastern India. It was constituted as a civil subdivision on 1 June 1869. Subsequently, it was upgraded to district in 1989, when it was split from Cachar district. As of 2011 it is the third least populous district of Assam (out of 27), after Dima Hasao and Chirang.