Ella, Baroness van Heemstra, DStJ (12 June 1900 – 26 August 1984) was a Dutch-British aristocrat and the mother of actress Audrey Hepburn.

Van Heemstra had two sons from this marriage, both of whom were born in the Dutch East Indies: Van Heemstra married secondly Joseph Victor Anthony Ruston (later Hepburn-Ruston) on 24 September 1926 at Batavia, Java, Dutch East Indies.

They were divorced on 24 June 1939 and had one daughter: Van Heemstra was an early supporter of Adolf Hitler and his Nazi regime, penning several articles in praise of the fascist leader.

[10] In the early 1960s she lived in Los Angeles with her friend Leonard Gershe, and then later in San Francisco, where she did volunteer work for soldiers coming back from Vietnam.

Ella was named Dame of the Most Venerable Order of the Hospital of Saint John of Jerusalem by Queen Elizabeth II on 7 September 1971.