Brazzaville (French pronunciation: [bʁazavil], Kongo: Ntamo, Ntambo, Kintamo, Kintambo, Tandala, Mavula; Teke: M'fa, Mfaa, Mfa, Mfoa) is the capital and largest city of the Republic of the Congo (Congo Republic). Administratively, it is a department and a commune. Constituting the financial and administrative centre of the country, it is located on the north side of the Congo River, opposite Kinshasa, the capital city of the Democratic Republic of the Congo (DR Congo).

The population of the capital is estimated to exceed 2.1 million residents, comprising more than a third of the national populace. Some 40% are employed in non-agricultural professions. During World War II, Brazzaville served as the de facto capital of Free France between 1940 and 1942.

In 2013, Brazzaville was designated a City of Music by UNESCO; since then it has also been a member of the Creative Cities Network.