Shai Hulud is an American hardcore punk band. Originally formed in Pompano Beach, Florida, the band later moved to Poughkeepsie, New York. The band is named after the giant sandworms in Frank Herbert’s novel Dune.

The two mainstay members of Shai Hulud are considered to be Matt Fox (guitar), who writes most of the band’s musical and lyrical output, and Matt Fletcher (originally guitar, now bass), who assists in writing.