Simon Biesheuvel (3 April 1908 – 13 June 1991) was a Dutch-born South African psychologist.
Simon and his family moved to Cape Town, South Africa, in 1922, when he was fourteen.
In 1940, during World War II, he was hired by the South African Air Force as the Officer Commanding of their Aptitude Test Section; he continued to hold this position until 1946.
[4] Biesheuvel is noted for a 1943 monograph in which he argued for an environmental interpretation of the gap in intelligence test scores between whites and blacks in South Africa.
[5] In making these arguments, Biesheuvel also criticized the views of hereditarian psychologists such as M. L. Fick and Carl Brigham.