Civic Center/UN Plaza is a BART and Muni Metro station in the Civic Center of San Francisco. The westernmost of the dual BART/Muni stops on the Market Street Subway, Civic Center/UN Plaza acts as a major hub for passenger movement throughout the San Francisco Bay Area. With 18,432 exits each weekday, it is the fourth-busiest station in the BART system.

A civic center or civic centre is a prominent land area within a community that is constructed to be its focal point or center. It usually contains one or more dominant public buildings, which may also include a government building. Recently, the term "civic center" has been used in reference to an entire central business district of a community or a major shopping center in the middle of a community. In this type of civic center, special attention is paid to the way public structures are grouped and landscaped.