Jack Edward Baker (born May 4, 1950) is a former first baseman in Major League Baseball who played for the Boston Red Sox between 1976 and 1977.

Listed at 6' 5", 225 lb., he was selected by Boston in the 1971 draft out of Auburn University.

He played professional baseball from 1971 to 1978 and was a power hitter, hitting 144 home runs in the minor leagues including one season in which he hit 36 home runs for the Pawtucket Red Sox.

Baker led off the last of the second by hitting a solo home run of the Milwaukee Brewers Bill Travers.

This biographical article relating to an American baseball first baseman is a stub.