The Prix du Palais-Royal is a Group 3 flat horse race in France open to thoroughbreds aged three years or older.
It is run at Longchamp over a distance of 1,400 metres (about 7 furlongs), and it is scheduled to take place each year in late May or early June.
The event is named after the Palais-Royal, a palace and an associated garden located in Paris.
For several years before its launch there was an event titled the Prix Palais Royal at Saint-Cloud.
This was named after a racehorse called Palais Royal, the winner of the Cambridgeshire Handicap and runner-up in the St Leger in 1928.