Chantal Delsol (a.k.a.:Chantal Millon-Delsol), born 16 April 1947 in Paris, is a French philosopher, political historian and novelist.
Founder of the Hannah Arendt research institute founded in 1993.
She is openly Catholic, and a disciple of Julien Freund and Pierre Boutang, describes herself as a "liberal-conservative".
Chantal Delsol main political ideas are liberalism, federalism, as well as the principle of subsidiarity based on the idea of singularity.