Cucumber Castle is the seventh studio album by the Bee Gees, released in April 1970. It was produced by Barry Gibb, Maurice Gibb, and Robert Stigwood. It consists of songs from their television special of the same name, which was named after a song on their 1967 album Bee Gees' 1st. Cucumber Castle is the only Bee Gees album not to feature any recorded contributions from Robin Gibb, as he had left the group before the album was recorded.

The Bee Gees were a musical group formed in 1958 by brothers Barry, Robin, and Maurice Gibb. The trio were especially successful in popular music in the late 1960s and early 1970s, and later as prominent performers in the disco music era in the mid-to-late 1970s.