Brook Maurio (previously Busey-Hunt; née Busey; born June 14, 1978), better known by the pen name Diablo Cody, is an American screenwriter, writer, blogger, journalist, and author. Cody received critical acclaim for her screenwriting debut film, Juno (2007), winning both the Academy Award and the BAFTA Award for Best Original Screenplay.

She wrote, produced, and made her directorial debut with the comedy drama film Paradise (2013). Cody has also written and produced the films Jennifer's Body (2009), Young Adult (2011), Ricki and the Flash (2015), and Tully (2018). Cody created, wrote, and produced the Showtime comedy drama series United States of Tara (2009–2011), and the Amazon Prime series One Mississippi (2015–2017). She made her Broadway debut with the Alanis Morissette musical Jagged Little Pill winning the Tony Award for Best Book of a Musical. She has been a member of the Academy of Motion Picture Arts and Sciences in the Writer's Branch since 2008.