Jason Douglas Henderson (born September 4, 1971) is an American writer of computer games, novels and several comic book series.

His book Alex Van Helsing: Vampire Rising was added to the 2011 Texas Library Association Lone Star Reading List, a list of the top 20 books published in the previous year for middle grade readers.

He was the writer of Locus best-seller The Element of Fire, the first novel in the Highlander (franchise), and was a co-creator on the Tokyopop manga series Psy-comm.

He hosts the cult film podcast Castle of Horror with manga collaborator Tony Salvaggio.

He graduated from the University of Dallas in 1993 with a BA in History and from Catholic University's Columbus School of Law in 1996 with a Juris Doctor (JD) degree in Law.