Agile (1902–after 1912) was an American Thoroughbred racehorse that was the winner of the 1905 Kentucky Derby. Agile won the Sapphire Stakes as a two-year-old and the Phoenix Stakes as a three-year-old. Agile won the Kentucky Derby against two other competitors, Ram's Horn and Layson, in one of the smallest racing fields since Azra won in 1892. In 1912, Agile was owned by T. Polk of San Antonio and was used as a carriage horse by the family.