The indigenous peoples of Bangladesh refer to native ethnic minorities in southeastern, northwestern, north-central and northeastern regions of the country. These regions include the Chittagong Hill Tracts, Sylhet Division, Rajshahi Division and Mymensingh District. The total population of indigenous ethnic minorities in Bangladesh was estimated to be over 2 million in 2010. They are diverse ethnic communities including Australoid, Tibeto-Burman and Sino-Tibetan races.