Jack Gantos is an American author of children's books. He is best known for the fictional characters Rotten Ralph and Joey Pigza. Rotten Ralph is a cat who stars in twenty picture books written by Gantos and illustrated by Nicole Rubel from 1976 to 2014. Joey Pigza is a boy with attention-deficit hyperactivity disorder (ADHD), featured in five novels from 1998 to 2014.

Dead End in Norvelt is an autobiographical novel by the American author Jack Gantos, published by Farrar, Straus, and Giroux in 2011. It features a boy named Jack Gantos and is based in the author's hometown, Norvelt, Pennsylvania. According to one reviewer, the "real hero" is "his home town and its values", a "defiantly political" message.