Andrew Mack Garner (December 23, 1898 – October 28, 1936) was an American jockey who won the 1934 Kentucky Derby as well as the 1929 and 1933 Belmont Stakes. He was inducted in the National Museum of Racing and Hall of Fame in 1969. Mack Garner made his professional racing debut on July 16, 1914, at a Butte, Montana racetrack.