Ronald Bruce Clark (born January 14, 1943) is an American former professional baseball third baseman, shortstop, and second baseman, who played in Major League Baseball (MLB) for the Minnesota Twins (1966–1969), Seattle Pilots (1969), Oakland Athletics (1971–72), Milwaukee Brewers (1972), and Philadelphia Phillies (1975). During a 7-year big league career, Clark batted .189, with 5 home runs, and 43 runs batted in (RBI). Clark graduated from Brewer High School in Fort Worth, Texas. Before the 1961 season, he was signed by the Philadelphia Phillies as an amateur free agent (prior to the draft).