A Momentary Lapse of Reason is the thirteenth studio album by the English progressive rock band Pink Floyd. It was released in the UK and US on 7 September 1987 by EMI and Columbia. It was the first Pink Floyd album since the departure of bass guitarist, singer, and songwriter Roger Waters in 1985. Unlike many Pink Floyd albums, A Momentary Lapse of Reason is not a concept album and is instead a collection of songs written by guitarist David Gilmour, sometimes with outside songwriters. It followed Gilmour's decision to include material recorded for his third solo album on a new Pink Floyd album with drummer Nick Mason and keyboardist Richard Wright.

A Momentary Lapse of Reason was recorded primarily on Gilmour's converted houseboat, Astoria. Its production was marked by a legal dispute with Waters as to who owned the rights to the Pink Floyd name, an issue resolved several months after the album was released. Though it received mixed reviews and was derided by Waters, A Momentary Lapse of Reason outsold Pink Floyd's previous album The Final Cut (1983), and was supported by a successful world tour. In the US, it has been certified quadruple platinum.

Track List:

01. Signs Of Life [04:24]
02. Learning To Fly [04:53]
03. The Dogs Of War [06:09]
04. One Slip [05:07]
05. On The Turning Away [05:42]
06. Yet Another Movie / Round And Around [07:28]
07. A New Machine, Pt 1 [01:46]
08. Terminal Frost [06:17]
09. A New Machine, Pt 2 [00:39]
10. Sorrow [08:47]

Personnel:
David Gilmour - vocals, guitars, keyboards, sequencers
Nick Mason - drums, percussion, drum machine, sound effects
Richard Wright - keyboards, vocals
Bob Ezrin - keyboards, percussion, sequencers
Tony Levin - bass guitar, Chapman Stick
Jim Keltner - drums, percussion
Steve Forman - percussion
Jon Carin - keyboards
Tom Scott - alto saxophone, soprano saxophone
Scott Page - tenor saxophone
Carmine Appice - drums
Patrick Leonard - synthesizers
Bill Payne - Hammond organ
Michael Landau - guitar
John Helliwell - saxophone (credited as "John Halliwell")
Darlene Koldenhoven (as Darlene Koldenhaven) - backing vocals
Carmen Twillie - backing vocals
Phyllis St. James - backing vocals
Donnie Gerrard - backing vocals