Fleshquartet (Swedish: Fläskkvartetten) is a Swedish band. Although they have five members, the name comes from the band consisting of an often electrical string quartet plus a percussionist. The name is inspired by classical ensemble Freskkvartetten. They often collaborate with vocalists, and the list of vocalists they have recorded with contains the likes of Who's Who of Swedish alternative music. The musical style ranges from classical string music, to experimental rock.

They won a Grammis award for best album with their 1993 album "Flow".