Sickle (8 February 1924 – 26 December 1943) was a British-bred thoroughbred racehorse who was later exported to the US where he was twice the leading sire in North America. He was bred by Edward Stanley, 17th Earl of Derby. Sickle was raced by Lord Derby and trained by George Lambton. The colt met with some success in racing, winning three of his ten starts and notably finishing third in a field of 23 in the 2,000 Guineas Stakes in 1927.