Delon is the daughter of Alain Delon and Rosalie van Breemen. She has a younger brother, Alain-Fabien Delon, and two older half-brothers, Christian Aaron "Ari" Boulogne, from her father's affair with German singer, actress and model Nico, and Anthony Delon, from his marriage to actress and model Nathalie Delon. She is the aunt of the supermodel Alyson Le Borges. She has different colored eyes-one brown and one blue.
At age 12 she acted alongside her father in the TV film Le Lion, an adaptation of the novel by Joseph Kessel. From 2007 to 2010, she trained at the Cours Simon in Paris. In 2011, she performed with her father on stage at the Théâtre des Bouffes-Parisiens.
In 2015 she was a participant in the game show Fort Boyard.
2003 : Le Lion de José Pinheiro (TV film) : Patricia Bullitt
2011 : Amour et sexe sous l'occupation d'Isabelle Clarke et Daniel Costelle (Documentary): Narration
2011 : L'occupation intime d'Isabelle Clarke et Daniel Costelle (Documentary): Narration
2014 : Une journée ordinaire (Captation), France 2
2011 : Une journée ordinaire d'Éric Assous, mise en scène Jean-Luc Moreau, Théâtre des Bouffes-Parisiens
2014-2015 : Une journée ordinaire d'Éric Assous, mise en scène Anne Bourgeois, Tournée.
2015 : Hibernatus by Jean Bernard-Luc, directed by Steve Suissa, Théâtre de la Michodière