Donald Roy Johnson (born November 12, 1926 in Portland, Oregon) is a former Major League Baseball pitcher. The 6'3", 200 lb. right-hander was signed by the New York Yankees before the 1944 season, and he played for the Yankees (1947, 1950), St. Louis Browns (1950-1951), Washington Senators (1951-1952), Chicago White Sox (1954), Baltimore Orioles (1955), and San Francisco Giants (1958).