Johanna Wilhelmina Cilliers (born 1950), known professionally as Jana Cilliers, is a South African bilingual actress. She is the recipient of a number of accolades, including two South African Film and Television Awards and a Fleur du Cap Theatre Award.
A native of Pretoria, Cilliers was the daughter of the abstract painter Bettie Cilliers-Barnard and Carel Hancke Cilliers. She attended Hoërskool Menlopark. She pursued a Bachelor of Arts at the University of Pretoria before going on to train at the Royal Academy of Dramatic Art (RADA) in London, completing her acting diploma in 1973.
Cilliers was married to film director and scriptwriter Regardt van den Bergh in the 1980s, with whom she had two daughters: Lika Berning and Leán. After Cilliers' and van den Bergh's divorce, Cilliers married Bill Flynn, who died in 2007.