Ronald Bruce Clark is an American former professional baseball infielder who played in Major League Baseball (MLB) for the Minnesota Twins (1966–1969), Seattle Pilots (1969), Oakland Athletics (1971–1972), Milwaukee Brewers (1972), and Philadelphia Phillies (1975). During a seven-year big league career, Clark batted .189, with five home runs, and 43 runs batted in (RBI). Clark was later a minor league manager and was an MLB coach for the Chicago White Sox (1988–1990), Seattle Mariners (1991), and Cleveland Indians (1992–1993).