Jeanne Fontbonne (31 March 1759 at Bas-en-Basset, Haute Loire, France – 22 November 1843 in Lyon), more commonly known by her name in religion Mother St. John Fontbonne, C.S.J., was a French religious sister. She founded the Congregation of the Sisters of St. Joseph of Lyon in 1808 after the French Revolution and served as its first Superior General.