Françoise de Longwy (French pronunciation: [fʁɑ̃swaz də lɔ̃wi]; 1510 – 28 August 1561) was the first-born and eldest daughter of Jean IV de Longwy and his wife, Jeanne d'Angoulême.

After the passing of her father, as eldest, she inherited the title of Dame of Pagny and Mirebeau.

On 10 January 1526, Françoise wed Philippe Chabot, thereby through marriage, succeeded to the Countess of Charny and Buzançois.

At court she held the position of lady-in-waiting to Catherine de Medici, and for Eleanor of Austria between the years of 1532 and 1543.

[1] On 10 January 1526, at the age of 16, Françoise married Philippe Chabot,[1] Seigneur De Brion, Count of Charny and Buzançois, present at the marriage was the court of King Francis.