Zeal (foaled 1818) was a British Thoroughbred racehorse and broodmare, which won the eighth running of the classic 1000 Guineas. As a three-year-old in 1821 won she won her first three races at Newmarket Racecourse including the 1000 Guineas but then finished fourth in The Oaks. As a four-year-old she walked over in the valuable Port Stakes but was beaten in her only other race. She later had a successful career as a broodmare.