Thomas Coraghessan Boyle, known as T. C. Boyle, is an American novelist and short story writer. Since the mid-1970s, he has published nineteen novels and more than 150 short stories. He won the PEN/Faulkner Award in 1988 for his third novel, World's End, which recounts 300 years in upstate New York.

Boyle was a Distinguished Professor of English at the University of Southern California. He grew up in a small town in the Hudson Valley, which he often fictionalizes as Peterskill in his works, such as the widely anthologized short story Greasy Lake. Boyle changed his middle name to Coraghessan when he was 17 and has used it throughout his career.