The Prix Saint-Alary is a Group 2 flat horse race in France open to three-year-old thoroughbred fillies.
It is run at Longchamp over a distance of 2,000 metres (about 11⁄4 miles), and it is scheduled to take place each year in May.
The event is named after Evremond de Saint-Alary (1868–1941), a successful racehorse owner and breeder.
It was established in 1960, and was originally contested on Longchamp's middle course (moyenne piste).
In 2024 the race was downgraded to Group Two status by the European Pattern Committee.