The Prix Thomas Bryon is a Group 3 flat horse race in France open to two-year-old thoroughbreds.
It is run at Saint-Cloud over a distance of 1,400 metres (about 7 furlongs), and it is scheduled to take place each year in October.
The event is named after Thomas Bryon, an Englishman who helped establish thoroughbred racing in France.
He was the secretary at the founding meeting of the Société d'Encouragement in 1833, and published the first volume of the Calendrier des Courses de Chevaux in 1834.
The distance was reduced to 1,400 metres again in 2015 as part of a series of changes to autumn races for two-year-olds.