Lou Doillon (born September 4, 1982 in Neuilly-sur-Seine) is a French model and actress. Her father is director Jacques Doillon and her mother is actress Jane Birkin.
On her mother's side she is the half-sister of Charlotte Gainsbourg and Kate Barry, and of Lola Doillon and Lily on her father's side.
At the age of nine, her appearance was distinctive, with Indian leggings under short dresses, worn with Grateful Dead T-shirts and rollerblades, and long dreadlocks. By the time she was 11½, she had tattoos and a stud in her tongue.
She gave birth to her first child, a son Marlowe Jack Tiger Mitchell, in 2002. She parted company with his father, musician Thomas-John Mitchell, less than a year later and went to New York.
She started her acting career as her mother's daughter in Kung-Fu Master (1987). Then her father offered her her first great role in the movie Trop (Peu) d'Amour (1998), and she also played in Mauvaises Fréquentations (Bad Company) (1999). She became a model because of her atypical beauty and is now a star in the European cinema.
As a model Doillon has appeared in the one-time Gap, Inc. publication "Individuals" and is the face and muse of the fashion house Givenchy. She also modeled for the 2007 Pirelli Calendar. In 2007 the heritage jeans brand Lee Cooper made her its creative partner for the next three years.