Piccadilly Circus is a famous road junction and public space of London's West End in the City of Westminster, built in 1819 to connect Regent Street with the major shopping street of Piccadilly. In this context, a circus, from the Latin word meaning "circle", is a round open space at a street junction.

Piccadilly Circus is surrounded by several major tourist attractions, including the Shaftesbury Memorial, Criterion Theatre, London Pavilion and several major retail stores. Numerous nightclubs and bars are located in the area and neighbouring Soho, including the former Chinawhite club.