Nightime (foaled 5 April 2003) is an Irish Thoroughbred racehorse and broodmare best known for winning the Irish 1,000 Guineas in 2006. After finishing unplaced in her only race as a juvenile she won a maiden race on her debut as a three-year-old and then recorded an emphatic six-length victory in the Irish 1000 Guineas. She failed to reproduce her form in two subsequent races and was retired in 2007. Since her retirement from racing she has had some success as a broodmare.