Quadrophenia is the sixth studio album by the English rock band the Who, released as a double album on 26 October 1973 by Track Records. It is the group's third rock opera, the previous two being the "mini-opera" song "A Quick One, While He's Away" (1966) and the album Tommy (1969). Set in London and Brighton in 1965, the story follows a young mod named Jimmy and his search for self-worth and importance. Quadrophenia is the only Who album entirely written by Pete Townshend.
The group started work on the album in 1972 in an attempt to follow up Tommy and Who's Next (1971), both of which had achieved substantial critical and commercial success. Recording was delayed while bassist John Entwistle and singer Roger Daltrey recorded solo albums and drummer Keith Moon worked on films.