Joseph Hillstrom King (born 1972) is an American writer of fiction and comic books, writing under the pen name of Joe Hill.

As of 2016 he has published four novels, a collection of short stories, a six-volume graphic novel series, and more. His most recent novel, The Fireman, debuted at #1 on the New York Times Bestseller list, and his novel Horns was made into a movie starring Daniel Radcliffe.

Hill is the the second child of authors Stephen King and Tabitha King. His younger brother Owen King is also a writer. Joe has three children.

Hill chose to use an abbreviated form of his given name (a reference to executed labor leader Joe Hill, for whom he was named) in 1997, out of a desire to succeed based solely on his own merits instead of as the son of Stephen King. After achieving a degree of independent success, Hill publicly confirmed his identity in 2007 after an article the previous year in Variety broke his cover (although online speculation about Hill’s family background had been appearing since 2005).