The Grand Prix de Deauville is a Group 2 flat horse race in France open to thoroughbreds aged three years or older.
It is run at Deauville over a distance of 2,500 metres (about 1 mile and 4½ furlongs), and it is scheduled to take place each year in August.
It was opened to foreign horses in 1872, and was subsequently won by international contenders such as Kincsem and Tristan.
The Grand Prix de Deauville was cancelled once during World War II, in 1940.
For the remainder of this period, while its regular venue was closed, it was switched between Longchamp (1941–42, 1945), Maisons-Laffitte (1943) and Le Tremblay (1944).