The following are the baseball events of the year 1905 throughout the world.

James Bentley "Cy" Seymour 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, Baltimore Orioles (1901–1902), Cincinnati Reds (1902–1906) and Boston Braves (1913). He batted and threw left-handed.