Erinn Smart (born January 12, 1980) is an American fencer who was a member of the United States Fencing Team at the 2008 Summer Olympics in Beijing, where she competed in the women's individual and team foil events.
Smart is 5 feet, 7 inches tall, weighs 125 pounds, and is coached by Buckie Leach.
Smart's brother Keeth is also a nationally ranked competitive fencer who also started fencing with the Peter Westbrook Foundation.