Léa Mysius (born 4 April 1989) is a French film director and screenwriter. In 2017, she made her feature directorial debut with the film Ava, which premiered at the 2017 Cannes Film Festival where it won the SACD Award. Her second feature film, The Five Devils, was screened in the Directors' Fortnight section at the 2022 Cannes Film Festival. As a screenwriter, Mysius has also collaborated with Arnaud Desplechin on Ismael's Ghosts (2017) and Oh Mercy! (2019), Jacques Audiard on Paris, 13th District (2021), and Claire Denis on Stars at Noon (2022).