Grant Hart (born Grantzberg Vernon Hart, March 18, 1961) is an American musician, best known as the drummer and co-songwriter for the influential alternative rock and hardcore punk band Hüsker Dü. After the band's breakup in 1988, Hart formed the alternative rock trio Nova Mob, where he moved to vocals and guitar. Hart's solo career became his main focus after the dissolution of Nova Mob in 1997.

As the co-songwriter of Hüsker Dü, Hart's songs (such as "The Girl Who Lives on Heaven Hill" and "Turn On The News") received praise from critics and contemporaries. Hart's vocal style, in contrast to that of Hüsker Dü bandmate Bob Mould, was a more measured and melodic delivery. His choice of lyrical themes, which ranged from teenage alienation in "Standing By The Sea" and the depiction of a murder in "Diane," to playful story-telling in "Books About UFOs," helped to expand the subject matter of hardcore punk.