Christian Vadim is a French actor. He is the son of actress Catherine Deneuve and director Roger Vadim.
He made his film debut in 1983, working with his father in the film Surprise Party, and appeared the next year in Éric Rohmer's Full Moon in Paris.
In 1999, he played Bloch in Time Regained, which also starred his mother Catherine Deneuve. He then worked again with Ruiz on Love Torn in a Dream, Savage Souls, A Place Among the Living, That Day and Night Across the Street.