Allan Heinberg (born June 29, 1967) is an American film screenwriter, television writer and producer and comic book writer.

Heinberg is the screenwriter of the 2017 film Wonder Woman, directed by Patty Jenkins. His television writing and producing credits include The Naked Truth, Party of Five, Sex and the City, Gilmore Girls, The O.C., Grey's Anatomy, Looking, and Scandal . Most recently, Heinberg developed, wrote, and ran ABC's The Catch, starring Mireille Enos and Peter Krause and also developed the 2022 Netflix series on The Sandman.

For Marvel Comics, Heinberg co-created and wrote Young Avengers and its sequel, Avengers: The Children’s Crusade with co-creator/artist Jim Cheung. As part of this series, he co-created the Marvel characters Kate Bishop, Hulkling, Iron Lad, Patriot (Eli Bradley), Speed, and Wiccan. For DC Comics, Heinberg co-wrote JLA: Crisis of Conscience with Geoff Johns (art by Chris Batista), and re-launched Wonder Woman with artists Terry and Rachel Dodson.

Heinberg was born to a Jewish family^[1] and is a graduate of Booker T. Washington High School in Tulsa, Oklahoma and Yale University class of 1989. He was in Morse College. Heinberg acted in the Broadway cast of Laughter on the 23rd Floor and appeared off-Broadway in Hello Muddah, Hello Fadduh and the Vineyard Theatre's production of Bob Merrill's Hannah...1939 starring Julie Wilson.^[2]

Heinberg is openly gay.^[10]