List of Famous people born on May 9th

Alexandre Aleksandrovich Kirillov is a Soviet and Russian mathematician, known for his works in the fields of representation theory, topological groups and Lie groups. In particular he introduced the orbit method into representation theory. He is an emeritus professor at the University of Pennsylvania.

Andrew Hopper is Treasurer and Vice-President of the Royal Society, Professor of Computer Technology, former Head of the University of Cambridge Department of Computer Science and Technology, an Honorary Fellow of Trinity Hall, Cambridge and Corpus Christi College, Cambridge and serial entrepreneur.

Brad Edward Budde is a former American college and professional football player who was an offensive guard in the National Football League (NFL) for seven seasons during the 1980s. Budde played college football for the University of Southern California (USC), and was an All-American and the winner of the Lombardi Award. He was a first-round pick in the 1980 NFL Draft, and played professionally for the NFL's Kansas City Chiefs.

James Maxwell Bardeen is an American physicist, well known for his work in general relativity, particularly his role in formulating the laws of black hole mechanics. He also discovered the Bardeen vacuum, an exact solution of the Einstein field equation.