Chaosphere is the third album by Swedish metal band Meshuggah. It was released on 10 November 1998, by Nuclear Blast. Chaosphere's sound is an almost complete departure from the thrash style of the band's previous releases, instead focusing on the technical, polyrhythmic, groove-oriented sound they would continue to explore on subsequent albums. A video was made for "New Millennium Cyanide Christ".
The Japanese version of the album contains a bonus song, titled "Unanything", as track 9. This song was also included on the promotional card-sleeve CD as track 6. At the end of the track 8, all the songs from the album are played at once.