Beaucoup Fish is the fifth album by Underworld, released in 1999. Following the huge success of the single "Born Slippy .NUXX" from its use in the film Trainspotting, Beaucoup Fish was Underworld's most anticipated release. It spawned several successful singles, including "Push Upstairs", "Jumbo" and "Moaner", which was previously used in the film Batman & Robin.

It is the last studio album to feature Darren Emerson, who departed in 2001, and the third album by the techno/house orientated version of Underworld which became active in about 1991/1992 (tracks were being released around this time under the names Lemon Interupt and Underworld).

The album was remastered and re-released in 2017 with deluxe and super-deluxe expanded editions.