The Prix Dollar is a Group 2 flat horse race in France open to thoroughbreds aged three years or older.

It is run at Longchamp over a distance of 1,950 metres (about 1 mile and 1¾ furlongs), and it is scheduled to take place each year in late September or early October.

The event is named after Dollar, a successful racehorse and sire in the 19th century.

In 1934, the race was titled the Prix du Centenaire to commemorate the centenary of the sport's main governing body at that time, the Société d'Encouragement.

The Prix du Centenaire was a 2,100-metre handicap with a prize of 318,600 francs.