Stephen Chbosky (; born January 25, 1970) is an American film director, screenwriter, and author. He is best-known for writing the bestselling coming-of-age novel The Perks of Being a Wallflower (1999), and writing and directing its 2012 film adaptation. He also directed drama Wonder (2017) and the 2021 film adaptation of Dear Evan Hansen. His first psychological horror novel, Imaginary Friend, was published in October 2019.
