The Prix Juigné is a flat horse race in France open to three-year-old thoroughbred colts and geldings. It is run over a distance of 2,100 metres (about 1 mile and 2½ furlongs) at Longchamp in April. It is restricted to horses which have not raced previously.

The event was established in 1894, and it was originally called the Prix de la Reine Marguerite.^[1] It was initially contested by colts and fillies over 2,000 metres, and had prize money of 20,000 francs.^[2] The inaugural running was won by Sesame.

The race continued with its original title until 1900,^[3] and was renamed the Prix Juigné in 1901.^[4] It was named in memory of Gustave de Juigné, a member of the Société d'Encouragement.

The distance of the race was extended to 2,100 metres in 1925.^[5] Its prize money increased throughout the 1920s, reaching 100,000 francs in 1929.^[6] It was held at Auteuil in 1943,^[7] and Maisons-Laffitte in 1944.^[8] Its prize was 300,000 francs on both occasions.

During the post-war period, the Prix Juigné was contested by several notable horses. The runner-up in 1955, Phil Drake, subsequently won that year's Epsom Derby.

The event was closed to fillies and shortened to 2,000 metres in 1990. It was restored to 2,100 metres in 2017.

^a Tremel finished first in 1997, but he was relegated to second place following a stewards' inquiry.
^b The 2017 race took place at Saint-Cloud while Longchamp was closed for redevelopment.

• List of French flat horse races
• Recurring sporting events established in 1894 – this race is included under its original title, Prix de la Reine Marguerite.