Shauna Cross is an American screenwriter, novelist and former roller derby athlete. She skated for the Los Angeles Derby Dolls under the pseudonym "Maggie Mayhem", and subsequently wrote the 2007 novel Derby Girl, a fictionalized version of her experiences in the TXRD Lonestar Rollergirls league. In 2009, she wrote a film adaption of the novel, Whip It, which was directed by Drew Barrymore and released in 2009. She was named one of Variety's 10 Screenwriters to Watch in 2008.