List of Famous people who born in 1931

Ruth Machado Lousada Rocha, most known as Ruth Rocha is a Brazilian writer of children's books. Together with Lygia Bojunga, Ana Maria Machado and Eva Furnari she is one of the leading exponents of the new wave of Brazilian children's literature. Rocha graduated in Political Sociology at the University of São Paulo and postgraduated in Educational Orientation in the Pontifical Catholic University of São Paulo. She became a member of the Paulista Academy of Arts since October 25, 2007, occupying the chair 38.

Jacques Rougerie (1932–2022) was a French historian of the Paris Commune.

Shu Chien, is a Chinese–American physiologist and bioengineer. His work on the fluid dynamics of blood flow has had a major impact on the diagnosis and treatment of cardiovascular diseases such as atherosclerosis. More recently, Chien's research has focused on the mechanical forces, such as pressure and flow, that regulate the behaviors of the cells in blood vessels. Chien is currently President of the Biomedical Engineering Society and is one of only 11 scholars who are members of all three U.S. national institutes: the National Academy of Sciences, National Academy of Engineering, and the Institute of Medicine.