"Money" is a song by the English progressive rock band Pink Floyd from their 1973 album The Dark Side of the Moon. Written by Roger Waters, it opened side two of the LP.

Released as a single, it became the band's first hit in the United States, reaching No. 10 in Cash Box magazine and No. 13 on the Billboard Hot 100. "Money" is noted for its unusual 7/4–4/4 time signature, and the tape loop of money-related sound effects (such as a ringing cash register and a jingle of coins) that is heard periodically throughout the song, including on its own at the beginning.

Although Roger Waters and David Gilmour have made recent comments stating that the song had been composed primarily in 7/8 time, it was composed in 7/4, as stated by Gilmour in an interview with Guitar World magazine in 1993.

The song changes to 4/4 time for an extended guitar solo. The first of three choruses which comprise the solo was recorded using real-time double tracking. Gilmour played the chorus nearly identically in two passes recorded to two different tracks of a multi-track tape machine. The second chorus is a single guitar. The doubled effect for the third chorus was created using automatic (or "artificial") double-tracking (ADT).

One of Gilmour's ideas for the solo section was that, for the second chorus of the solo, all reverb and echo effects would be completely off (referred to as "dry"), creating the sense of just four musicians playing in a small room. For this "dry" chorus, all musicians played softly and subtly, with Gilmour's solo, now one single guitar, playing very sparsely. Then, for the third chorus, the dynamics would suddenly rise, with heavy use of reverb and echo (a "wet" sound), additional rhythm-guitar parts in the background, and the drums becoming heavy and almost chaotic.

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