Meet the major ethnic groups of Congo Brazzaville (Republic of Congo). Most of the population belongs to four major ethnic groups—the Kongo, Sangha, Teke, and Mbochi —which comprise more than 40 tribes. In addition, there are small groups of Pygmies (hunters & gatherers), Congo's original inhabitants, in the high forest region. The major ethnic group, the Kongo, occupies the entire area southwest of Brazzaville and accounts for nearly half the nation's population. | Africa.com