Lemberg (1907–1928) was a British Thoroughbred racehorse and sire. He won seventeen times in a career that lasted from 1909 until 1911, taking major races at two, three and four years of age. Lemberg won his most important victory as a three-year-old in 1910 when he won The Derby. His career was marked by his rivalries, first with the fast and precocious Neil Gow and later with the outstanding middle-distance runner Swynford. Lemberg went on to have a successful career at stud.