Harry Bartholomew Hooper (August 24, 1887 – December 18, 1974) was an American baseball player. He played as a right fielder. He batted left-handed and threw right-handed. He played for the Boston Red Sox (1909–1920) and the Chicago White Sox (1921–1925) of Major League Baseball (MLB). He is one of only two members of four different Red Sox World Series championship teams (1912, 1915, 1916, 1918). He was added to the Baseball Hall of Fame in 1971.