The Prix La Force is a Group 3 flat horse race in France open to three-year-old thoroughbreds.
It is run over a distance of 2,000 metres (about 1¼ miles) at Longchamp in April.
The event is named in memory of the Duc de La Force, Bertrand Nompar de Caumont (1840–1909), a member of the Société d'Encouragement.
It was established in 1910, and was initially open to horses aged three or four.
The Prix La Force was restricted to three-year-olds in 1950.