David Elias Callaham (born October 24, 1977) is an American screenwriter and producer. He is best known for co-writing the screenplays for the films Doom (2005), The Expendables (2010), Zombieland: Double Tap (2019), Wonder Woman 1984 (2020), Mortal Kombat, Shang-Chi and the Legend of the Ten Rings (both 2021), and Spider-Man: Across the Spider-Verse (2023).