James T. Tynion IV is an American comic book writer. He is best known for his work on the Batman franchise at DC Comics, his DC Black Label series The Nice House on the Lake and his independent series Department of Truth and Something Is Killing the Children.

In 2022, he won three Eisner Awards for his work. He is also a nine-time nominee for the GLAAD Media Award for Outstanding Comic Book, the most nominations of any writer, winning once in 2016.