Anton Walter Freud (3 April 1921 in Vienna, Austria – 8 February 2004, Oxted, England) was a chemical engineer and a member of the Royal Pioneer Corps and the British Special Operations Executive. He was a grandson of Sigmund Freud and escaped with him and other family members from Vienna after the Anschluss.Freud was born in Vienna in 1921. He was the first child of Sigmund Freud’s eldest son Jean-Martin (Martin), a lawyer, and his wife Ernestine Drucker.