Ice Nine Kills (sometimes stylized in all capital letters or abbreviated to INK, and formerly known as Ice Nine) is an American heavy metal band from Boston, Massachusetts, who are signed to Fearless Records. Best known for its horror-inspired lyrics, Ice Nine Kills formed in its earliest incarnation in 2000 by high school friends Spencer Charnas and Jeremy Schwartz. Charnas is currently the only remaining founding member.

Ice Nine Kills has released three EPs along with 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, which peaked at number 122 on the US Billboard 200; The Silver Scream, which peaked at number 29; and their latest, The Silver Scream 2: Welcome to Horrorwood which peaked at number 18. Their band name is derived from the fictional substance ice-nine from the 1963 novel Cat’s Cradle by Kurt Vonnegut.