Caergwrle (foaled 1965) was a British Thoroughbred racehorse. In a racing career lasting from July 1967 until June 1968, the filly ran six times and won three races. After winning once as a two-year-old she showed improved form in the spring of 1968 to win the Classic 1000 Guineas at Newmarket Racecourse. Caergwrle was beaten in her only subsequent race and was retired to stud where she had limited success as a broodmare.