Hadjer-Lamis is one of the 18 regions of Chad, located in the southwest of the country. The capital is Massakory. It corresponds to part of the former prefecture of Chari-Baguirmi (sub-prefectures of Bokoro and of Massakory and part of N'Djamena). Massakory is the 22nd town of Chad for number of inhabitants (11.300 for the 1993 census).

 It comprises 3 departments: Dababa Bokoro Bokoro, Dagana Massakory Karal, Haraze Al Biar Massaguet Mani.