Sarah Halley Finn is an American casting director and producer. Finn has cast over 100 feature films and is best known for casting the Marvel Cinematic Universe films.

She also cast and co-produced Oscar-winning Best Picture Everything Everywhere All at Once, the most awarded film in movie history. It won three out of four acting categories at the 95th Academy Awards: Best Actress, Best Supporting Actor, and Best Supporting Actress – a feat only achieved twice before, and not since 1976. Other works include Oscar-winning films Black Panther, Three Billboards Outside Ebbing, Missouri, and Crash, all of which earned Finn the Casting Society of America’s highest honour, the Artios Award for Outstanding Achievement in Casting.