Juan "Rusty" Theron (born 24 July 1985) is a South African-American professional cricketer. He played for the Warriors cricket team in South African domestic cricket and Rajasthan Royals in the Indian Premier League and for the South Africa national team. He is a right-arm fast bowler and bats right-handed. He retired from South African domestic cricket on 8 October 2015, following a spate of knee injuries. In 2019, he qualified to represent the United States cricket team in international matches, after fulfilling the International Cricket Council's three-year residency rule. He represented the United States in a One Day International (ODI) match in September 2019. He is known as "Rusty," due to the rustic brown color of his hair.