Winter (foaled 15 February 2014) is an Irish Thoroughbred racehorse. She won one minor race from three starts as a two-year-old in 2016, but made considerable improvement in the following spring and won the 1000 Guineas on her fifth racecourse appearance. She went on to record further Group 1 victories in the Irish 1,000 Guineas, Coronation Stakes and Nassau Stakes.