Bruno Moynot was her partner from 1974 until 1981. In a second union with sculptor Philippe Berry (brother of actor Richard Berry), she had a daughter, Marilou Berry (born 1 February 1983, Paris), also an actress, and an adopted son, Rudy Berry (born 1988). Divorced from Philippe Berry in 1999, she married Native American actor George Aguilar in 2003, whom she met on the set of The Frenchman's Son in 1999. In July 2018, her daughter Marilou Berry announced on her Instagram account that she was pregnant with her first child. Her boy, Andy, was born in November 2018 and was Balasko's first grandchild. Movies starring or featuring Josiane Balasko with more than one million tickets sold at movie theatres in France.