François de Cossé, 13th Duke of Brissac (19 February 1929 – 6 April 2021), was a French aristocrat and landowner.^[1] He held the French noble title of Duke of Brissac from 1993 until his death in 2021.

He was the son of Pierre de Cossé, 12th Duke of Brissac, and his wife, Marie Zélie Antoinette Eugénie Schneider. She was the daughter of industrialist Eugène Schneider II.

In 1958, he married Jacqueline Alice Marie de Contades, with whom he had four children

1. Agnès Alexandra Marie Bienvenue de Cossé
2. Charles André Raymond Timoléon Aymard Hubert Marie de Cossé, 14th Duke of Brissac
3. Angélique Patricia Marie, Marie Antoinette Elvire de Cossé
4. Pierre Emmanuel Timoléon Marie Raymond de Cossé

He served as President of the Jockey-Club de Paris from 1997 to 2014, and he was Grand Master of the Order of Saint Lazarus from 1986 to 2004. He was the proprietor of the Château de Brissac in Brissac-Quincé.^[2]

The 13th Duke of Brissac died at his Château de la Roche in Charcé-Saint-Ellier-sur-Aubance on 6 April 2021, at the age of 92.^[3]

• Les Brissac (1952)
• Les Brissac et l'histoire (1973)
• L'histoire de la maison Cossé-Brissac (1987)