A sin-eater is a person who consumes a ritual meal in order to spiritually take on the sins of a deceased person.

Sin-eater may also refer to:

Sin-Eater (character), a Marvel Comics character Onimar Synn, also known as Sin-Eater, a DC Comics character Sin Eater, a character in the film The Incredible Journey of Doctor Meg Laurel The Sin Eater, also known as The Order, a 2003 film The Sin Eaters, a 2009 audiobook "Sin-Eaters" (song), a 2010 song by The National Geist: The Sin-Eaters, a 2009 role-playing game Sin Eater (Campisi novel), a 2020 novel by Megan Campisi

See also The Last Sin Eater, a 1998 novel by Francine Rivers The Last Sin Eater (film), a 2007 film based on the novel The Sin Eater's Daughter, a novel series by Melinda Salisbury