Catherine de Cossé (Catherine Françoise Charlotte; 13 January 1724 – 22 July 1794) was a French noblewoman, arrested during the French Revolution, charged with treason, and executed by guillotine in Paris.

She was the paternal grandmother of Marie Adrienne de Noailles, Marquise de La Fayette[2] On 25 February 1737, she married Louis de Noailles, then styled the Duke of Ayen (duc d'Ayen) as heir to the more senior Dukedom of Noailles.