Ummagumma is the fourth album (double album) by English rock band Pink Floyd,
recorded 27 April and 2 May 1969 (live album) and released on November 7, 1969.
Pink Floyd's first release on Harvest Records. Originally released on October 25, 1969. The studio part of the album is known for being highly experimental and divisive amongst Pink Floyd fans.
1st USA pressing (from 1969) has no "Special Buy!" on front cover, there are 3 different pressing variations that exist for US releases.
Winchester Ummagumma
Scranton Ummagumma
Jacksonville Ummagumma

The first disc (SHDW 1) is a live album.
Sources of the original studio recordings:
- A1 ‎– "The Piper At The Gates Of Dawn"
- A2 ‎– "Point Me At The Sky" Single
- Side B ‎– "A Saucerful Of Secrets"
(Total duration: 39:15)

The second disc (SHDW 2) is a studio album.
At 16 words, track C3 has the distinction of having the longest name ever carried by a Pink Floyd song.
(Total duration: 48:44)

Cover design trivia;
- Album cover shows a droste effect. On early versions the effect ends with an artwork of Pink Floyd - A Saucerful Of Secrets on the wall.
- The album, whose package is shown on cover (over the band's name) is MGM's "Gigi" - Original Cast Sound Track Album (which was released 11 years earlier) was removed on US vinyl pressings, the australian pressings show no cover at all.

Performed by:
Richard Wright – keyboards, vocals (live album); organ, piano, Mellotron and percussion on "Sysyphus"