Royce Spencer Clayton (born January 2, 1970) is an American former professional baseball shortstop. He played in Major League Baseball for the San Francisco Giants, St. Louis Cardinals, Texas Rangers, Chicago White Sox, Milwaukee Brewers, Colorado Rockies, Arizona Diamondbacks, Washington Nationals, Cincinnati Reds, Toronto Blue Jays, and Boston Red Sox between 1991 and 2007. After his playing career, Clayton appeared in the film Moneyball and pursued various business ventures. He has been the head varsity baseball coach at Oaks Christian School in Westlake Village, California, since 2016.