Katie Lynn Leclerc is an American actress and producer. She has appeared on several television series, including Veronica Mars, Fashion House, Community and The Big Bang Theory. In 2011, she was cast in the television show Switched at Birth, starring as Daphne Vasquez.

Switched at Birth is an American teen and family drama television series that premiered on ABC Family on June 6, 2011. The one-hour scripted drama is set in the Kansas City metropolitan area, and revolves around two teenagers who were switched at birth and grew up in very different environments: one in an affluent suburb, and the other in a working-class neighborhood. According to ABC Family, it is "the first mainstream television series to have multiple deaf and hard-of-hearing series regulars and scenes shot entirely in American Sign Language (ASL)".