Hüsker Dü (/ˈhʊskərˈduː/) was an American rock band formed in Saint Paul, Minnesota in 1979. The band's continual members were guitarist/vocalist Bob Mould, bassist Greg Norton, and drummer/vocalist Grant Hart. Hüsker Dü first gained notice as a hardcore punk band with thrashing tempos and screamed vocals. The band developed a more melodic musical style as they drifted away from their early sound, helping to develop the alternative rock sound in the process. Mould and Hart split the songwriting and singing duties; Mould's lyrics were known for being more soul-searching and intense than the often whimsical and cryptic ones of Hart.

Following a series of albums on independent label SST Records, including Zen Arcade (1984) and New Day Rising (1985), the band signed to Warner Bros. Records in 1986.

Hüsker Dü broke up in 1987 without having achieved a popular breakthrough, but they influenced later pop punk and alternative rock bands.