Françoise d'Amboise was a 15th-century French noblewoman and blessed nun. Born in Thouars in 1427 to the Viscount of Thouars, she eventually became the Duchess of Brittany through her marriage to Pierre II. Following the death of her husband, she resisted marriage proposals from King Louis XI and dedicated her life to religious service. She played a central role in establishing the Carmelite order in France, serving as a prioress and living as a nun until her death in 1485.