Samuel Blake Chapman (April 11, 1916 – December 22, 2006) was an American two-sport athletic star who played as a center fielder in Major League Baseball, spending nearly his entire career with the Philadelphia Athletics (1938–1941, 1945–1951). He batted and threw right-handed, leading the American League in putouts four times. He was previously an All-American college football player at the University of California.