Quaristice is the ninth studio album by British electronic music duo Autechre, initially released on 29 January 2008 by Warp Records.

[2] Autechre members Rob Brown and Sean Booth changed their approach for Quaristice, moving from a more deliberate studio process to a more spontaneous and "jam session" style of songwriting, approximately doubling the usual number of tracks per album to twenty.

Andy Kellman of AllMusic said that despite the large amount and short running time of the tracks, that "the ideas arrive fully formed, never appearing to be dashed off or loosely sketched," and that "not since LP5 has being impressed been so obviously secondary to enjoyment."

"[18] However, Andy Gill of The Independent gave a negative review, saying that the album found "the Autechre duo of Rob Brown and Sean Booth still searching vainly for structure and meaning among a largely impenetrable undergrowth of synthesized ticks and tones."

All tracks are written by Sean Booth and Rob BrownA second disc, entitled Quaristice (Versions), was included in the limited edition.