The Civic Centre is a municipal building located in the Cultural Quarter area within the city of Southampton, England. It comprises offices occupied by Southampton City Council, the SeaCity Museum, the Guildhall, the Southampton City Art Gallery, and the city library. It was designed by the English architect Ernest Berry Webber in the Classical style in 1929 and constructed over a ten-year period. It was completed in 1939. Pevsner's Hampshire: South describes it as "the most ambitious civic building erected in the provinces in the interwar years". It was designated as a Grade II* listed building in 1980.

Southampton City Council is the local authority of the city of Southampton. It is a unitary authority, having the powers of a non-metropolitan county and district council combined. It provides a full range of local government services including council tax billing, libraries, social services, processing planning applications, waste collection and disposal, and it is a local education authority. The council uses a leader and cabinet structure. Labour has been in control of the council since 2022.