"Love, Reign o'er Me", subtitled "Pete's Theme", is a song by English rock band The Who. Written and composed by guitarist Pete Townshend, it was released on 27 October 1973 as the second single from the band's sixth studio album and second rock opera, Quadrophenia. It is the final song on the album, and has been a concert staple for years. The song peaked at number 76 on the US Billboard Hot 100 and number 54 on Cash Box.

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 & composed by Pete Townshend.