Sylvette Herry, known professionally as Miou-Miou, is a French actress. A ten-time César Award nominee, she won the César Award for Best Actress for the 1979 film Memoirs of a French Whore. Her other films include This Sweet Sickness (1977), Entre Nous (1983), May Fools (1990), Germinal (1993), Dry Cleaning (1997) and Arrêtez-moi (2013). In her career she has worked with a number of international directors, including Michel Gondry, Bertrand Blier, Claude Berri, Jacques Deray, Patrice Leconte, Joseph Losey and Louis Malle.

The César Award for Best Actress is one of the César Awards, presented annually by the Académie des Arts et Techniques du Cinéma to recognize the outstanding performance in a leading role of an actress who has worked within the French film industry during the year preceding the ceremony. Nominees and winner are selected via a run-off voting by all the members of the Académie.