James Elmer Duggan (June 1, 1885 – December 5, 1951) was an American professional baseball player.

Except for one game with St. Louis Browns in 1911, first baseman Duggan spent his entire 11-year professional career in the minor leagues.

He graduated from Whiteland High School and attended Franklin College before entering pro ball with the Atlanta Crackers of the Southern Association in 1906.

He was playing for the Holyoke, Massachusetts Papermakers (Connecticut League) in 1911 when the franchise folded on June 20.

In 1918 Duggan entered the army, He was on board a ship bound for Europe when World War I ended.