Sara Shepard (born April 8, 1977) is an American author. She is widely known for her bestselling series Pretty Little Liars and The Lying Game, both of which have been adapted into television shows on Freeform.

Sara graduated from NYU and holds an MFA from Brooklyn College. Throughout her life, she has resided in New York City, Brooklyn, Tucson, Arizona, Philadelphia, and currently resides in Pittsburgh, PA.

The inspiration for her Pretty Little Liars novels came from her upbringing in Philadelphia's Main Line.