August H. Krock (May 9, 1866 – March 22, 1905) was an American Major League Baseball pitcher. He played three seasons, from 1888 to 1890, for the Chicago White Stockings, Indianapolis Hoosiers, Washington Nationals, and Buffalo Bisons. In Krock's debut season, 1888 with the White Stockings, he had 25 wins and 14 losses.