Travis John Klune, known as TJ Klune, is an American author born on May 20, 1982. He specializes in fantasy and romantic fiction featuring gay and LGBTQ+ characters. His work has been widely acclaimed, with his fantasy novel The House in the Cerulean Sea becoming a New York Times best seller and winning the 2021 Alex and Mythopoeic Awards.

Klune is open about his asexuality and has spoken about how it influences his writing. His novel Into This River I Drown won the Lambda Literary Award for Gay Romance in 2014, further establishing his reputation as a noteworthy author in the LGBTQ+ literary community.