James Bentley "Cy" Seymour (December 9, 1872 – September 20, 1919) was an American professional baseball center fielder and pitcher, who played in Major League Baseball (MLB) from 1896 to 1913 for the New York Giants (1896–1900; 1906–1910), Baltimore Orioles (1901–1902), Cincinnati Reds (1902–1906) and Boston Braves (1913). He batted and threw left-handed.