Rufus James Marshall (born May 25, 1931) is a former first baseman, manager and coach in American Major League Baseball.
Marshall managed the Chicago Cubs (1974–76) and the Oakland Athletics (1979) but never enjoyed a winning season in either post.
His career big-league managing record was 229–326 (.413) and his 1979 A's squad lost 108 of 162 games (.333).
Born in Danville, Illinois, and raised in Long Beach, California, he threw and batted left-handed and was listed as 6 feet 1 inch (185 cm) tall and 190 pounds (86 kg; 13 st 8 lb).