Juliette Marny (foaled 1972) was a British Thoroughbred racehorse and broodmare best known for winning the classic Epsom Oaks in 1975. After being beaten in both her races as a two-year-old and disqualified on her three-year-old debut, the filly won the Lingfield Oaks Trial, the Oaks Stakes and Irish Oaks before her career was ended by injury in the Yorkshire Oaks. She was then retired to stud, where she had some success as a broodmare.