Kleptomania is the fourth and final album by English rock band Mansun, released posthumously in September 2004, following the band's split, as a triple album. The first CD features the material that was to form the basis of the band's next album, which was originally going to be self-titled, and the other 2 CDs feature EP tracks, outtakes and demos.

Legacy: The Best Of Mansun is the first official 'best of' collection from Mansun. It collects all the bands Parlophone lead-EP tracks and selected album tracks which were compiled by Paul Draper and Dominic Chad. It was released as a standard CD, special edition CD and DVD set featuring all the bands promo videos and digital download. In Japan the compilation included two bonus tracks.