List of Famous people who are 70

Henri Berestycki is a French mathematician who obtained his PhD from Université Paris VI – Université Pierre et Marie Curie in 1975. His Dissertation was titled Contributions à l'étude des problèmes elliptiques non linéaires, and his doctoral advisor was Haim Brezis. He was an L.E. Dickson Instructor in Mathematics at the University of Chicago from 1975–77, after which he returned to France to continue his research. He has made many contributions in nonlinear analysis, ranging from nonlinear elliptic equations, hamiltonian systems, spectral theory of elliptic operators, and with applications to the description of mathematical modelling of fluid mechanics and combustion. His current research interests include the mathematical modelling of financial markets, mathematical models in biology and especially in ecology, and modelling in social sciences. For these latter topics, he obtained an ERC Advanced grant in 2012.

Surinderjeet Singh Ahluwalia is an Indian politician of the Bharatiya Janata Party (BJP) and is its National Vice President.

Gregory John Hartmayer, O.F.M. Conv. is an American prelate of the Catholic Church. A Conventual Franciscan, he serves as the Archbishop of Atlanta, having returned to the archdiocese where he worked from 1995 to 2011. From 2011 to 2020, he served as the bishop of the Diocese of Savannah.

Ron Arad is an Israeli industrial designer, artist, and architectural designer.