The American Oaks (formerly the American Oaks Invitational Stakes) is a Thoroughbred horse race run annually at Santa Anita Park in Arcadia, California, USA. It was originally run at Hollywood Park Racetrack in Inglewood, California), which closed in 2014. Previously held in early summer, in 2016 the race was rescheduled to December. Open to three-year-old fillies, it is contested at a distance of one and a quarter miles on turf. The American Oaks was first run as a Grade I event in 2004. It was not eligible for grading during the first two runnings.