Louise Pauline Mainguené, known as Sylvie (3 January 1883 – 5 January 1970), was a French actress.

The daughter of a sailor and a teacher, Sylvie entered an acting conservatory where she won a class comedy award unanimously. She started her professional career in 1903 and she earned her first success with The Old Heidelberg. She first appeared in French silent films. She was an actress known for Don Camillo (1952), The Shameless Old Lady (1965), and Le Corbeau (1943).