Mattie Larson (born May 20, 1992) is an American former artistic gymnast. She competed at the senior elite level from 2008 to 2010. Larson was the 2010 U.S. national champion on floor exercise. At that year's World Championships, she won a silver medal with the U.S. in the team competition. Larson then competed at UCLA from 2012 to 2014.