Pink Floyd was an English rock band from London. Founded in late 1965, the group achieved worldwide acclaim, initially with innovative psychedelic music, and later in a genre that came to be termed progressive rock.

Distinguished by philosophical lyrics, musical experimentation, frequent use of sound effects and elaborate live shows, Pink Floyd remains one of the most commercially successful and influential groups in the history of popular music.

Main official members (in a chronological order):
Roger Waters – bass guitar, vocals, sound effects (1965-1985, 2005)
Nick Mason – drums, percussion, sound effects (1965-1994, 2005, 2007, 2013-2014, 2022)
Richard Wright – keyboards, vocals (1965-1981, 1987-1994, 2005, 2007) (session musician during 1986-1987)
Syd Barrett – guitar, vocals (1965-1968)
David Gilmour – guitar, slide guitar, vocals (1967-1994, 2005, 2007, 2013–2014, 2022)

Pre-Pink Floyd members (in a chronological order):
Roger Waters - lead guitar (1963-1964), bass guitar (1964-1965)
Nick Mason - drums (1963-1965)
Clive Metcalfe - bass (1963-1964)
Keith Noble - vocals (1963-1964)
Sheilagh Noble - vocals (1963)
Richard Wright - rhythm guitar (1963-1964), keyboards (1964-1965)
Mike Leonard - keyboards (1963)
Vernon Thompson - guitar (1963)
Juliette Gale - vocals (1964)
Rado Klose (Bob Klose) - guitar (1964)
Syd Barrett - guitar (1964-1965), vocals (1965)
Chris Denis - vocals (1965)

Previous band names (in a chronological order):
* Sigma 6 (1963–1964)
* The Meggadeaths (1964)
* The Abdabs (1964)
* The Screaming Abdabs (1964)
* Leonard's Lodgers (1964)
* The Spectrum Five (1964)
* The Tea Set (1964–1965)
* The Pink Floyd Sound (1965)
* The Pink Floyd (1965–1967)

Inducted into Rock And Roll Hall of Fame in 1996 (Performer).
Group name was taken from both Pink Anderson and Floyd "Dipper Boy" Council as a tribute to the American blues music they loved.