Leilani Seamah Mitchell (born June 15, 1985) is an American-Australian professional basketball player for the Washington Mystics of the Women's National Basketball Association (WNBA). Mitchell was drafted 25th overall by the Phoenix Mercury in the 2008 WNBA draft. A dual citizen of the United States and Australia, she is a member of Australian women's national basketball team (the Opals). In 2019 Mitchell became the first WNBA player to win the Most Improved Player Award twice.