Arthur Herzog III (April 6, 1927 – May 25, 2010) was an American novelist, non-fiction writer, and journalist, well known for his works of science fiction and true crime books. He was the son of songwriter Arthur Herzog, Jr..

His novels The Swarm and Orca have been made into films. His science fiction novel IQ 83 is being made into a film by Dreamworks.

Herzog was also the author of non-fiction books: The Church Trap is a critique of Protestant, Catholic, and Jewish church organization and institutions particularly in the U.S; 17 Days: The Katie Beers Story, is about the kidnapping and child sexual abuse of Katie Beers.