Frank George Delahanty (December 29, 1882 in Cleveland, Ohio – July 22, 1966 in Cleveland, Ohio), was a professional baseball player who played outfielder and occasional first baseman in the Major Leagues from 1905-1915. He would play for the New York Highlanders, Cleveland Indians, Buffalo Buffeds, and Pittsburgh Rebels. His brothers, Ed, Jim, Joe and Tom also played in the Major Leagues. Frank was the last of the Delahanty brothers active in the major leagues, with his final appearance coming in the same month (May 1915) as his brother Jim's. Delahanty died from an accidental fall in Cleveland at the age of 83.