Bárbara Muschietti (Vicente López, Buenos Aires, December 22, 1971) is an Argentine film producer and screenwriter. He studied at the University of California Los Angeles (UCLA). She is known for having produced the horror films Mama (2013), It (2017) and It Chapter Two (2019) and the superhero film The Flash (2023). She is the sister of Andy Muschietti, who directed most of the films he produced.