Ice Nine Kills is an American metalcore band founded in Boston, Massachusetts in 2002.

Best known for its horror-inspired lyrics, Ice Nine Kills formed in its earliest incarnation in 2002 by high school friends Spencer Charnas and Jeremy Schwartz. The group originally pursued a style combining pop-punk, emo, post-hardcore and ska into their own innovative blend of rock, but have since shifted into more of a theatrical metalcore hybrid. Charnas is currently the only remaining founding member.

To date, Ice Nine Kills has released three EPs: The Burning, 2 Song Acoustic and The Predator, as well as six full-length studio albums: Last Chance to Make Amends, Safe Is Just a Shadow, The Predator Becomes the Prey, Every Trick in the Book, The Silver Scream, and The Silver Scream 2: Welcome to Horrorwood*.

Their band name is derived from the fictional substance “ice-nine” from the science fiction novel Cat’s Cradle by Kurt Vonnegut.