Jacqueline West is an American fashion and costume designer. In a career spanning over three decades, she is recognized for her prolific work across small-scale productions as well as blockbusters. Her work appears in such acclaimed films as Quills (2000), The Curious Case of Benjamin Button (2008), The Social Network (2010), The Tree of Life (2011), Argo (2012), The Revenant (2015), Dune (2021), and Killers of the Flower Moon (2023). She has been nominated for the Academy Award for Best Costume Design five times.