Harley Hugh Dillinger (October 30, 1894 – January 8, 1959), nicknamed "Hoke", was a Major League Baseball pitcher who played for one season. He played for the Cleveland Naps from August 16, 1914, to October 3, 1914. He went to school at the University of Rio Grande and later managed the Paducah Indians of the Kentucky–Illinois–Tennessee League for part of the 1922 season.