Ernest Grover Gilmore (November 1, 1888 – November 25, 1919) was an American professional baseball player who played right fielder from 1914 through 1915 in the Federal League. Listed at 5 ft 9+1⁄2 in (1.77 m), 170 lb, he batted and threw left-handed. Born in Chicago, Illinois, Gilmore started his Minor leagues career in 1910 with the Denver Grizzlies, playing for them one year before joining the San Francisco Seals (1912), Buffalo Bisons (1912) and Fort Wayne Railroaders (1914). Then, in 1914 he joined the Kansas City Packers of the outlaw Federal League.