Françoise Lilar (6 July 1930 – 13 August 2016), pen name Françoise Mallet-Joris, was a Belgian author.
She was born in Antwerp, the daughter of the writer Suzanne Lilar and the Belgian Minister of Justice and Minister of State Albert Lilar, and the sister of the 18th century art historian Marie Fredericq-Lilar.
Mallet-Joris spent two years in the United States before going to Paris, France, where she attended the Sorbonne.
She lived in Paris and Brussels, Belgium.
She has been married to Robert Amadou, Alain Joxe and Jacques Delfau, and has four children, Daniel Amadou, and Vincent, Alberte and Pauline Delfau.
She is a prolific writer who was a member of the Prix Femina committee from 1969 to 1971 when she was appointed to the Académie Goncourt.