Bethrah (foaled 21 March 2007) is an Irish Thoroughbred racehorse and broodmare best known for winning the Irish 1,000 Guineas in 2010. After finishing unplaced on her only run as a two-year-old she reached her peak in the following spring, winning a maiden race and the Derrinstown Stud 1,000 Guineas Trial before taking the Irish 1000 Guineas. She was well beaten in her only subsequent race and was retired at the end of the year.