The Prix Vermeille is a Group 1 flat horse race in France open to thoroughbred fillies and mares aged three years or older.
It is run at Longchamp over a distance of 2,400 metres (about 1½ miles), and it is scheduled to take place each year in September.
The Prix Vermeille was established in 1897, and was originally restricted to fillies aged three.
Preceded by the Poule d'Essai des Pouliches and the Prix de Diane, the Prix Vermeille is the final leg of France's fillies' Triple Crown.
The 2024 winner, Bluestocking was the seventh horse to win both races in the same year.