Brook Maurio (previously Busey-Hunt; née Busey; born June 14, 1978), known professionally by the pen name Diablo Cody, is an American writer and producer. She gained recognition for her candid blog and subsequent memoir, Candy Girl: A Year in the Life of an Unlikely Stripper (2005). Cody received critical acclaim for her screenwriting debut, Juno (2007), which won 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), Tully (2018), and Lisa Frankenstein (2024).