List of Famous people born in Illinois, United States of America

Marvin Leonard "Murph" Goldberger was an American theoretical physicist and former president of the California Institute of Technology.

William "Big Bill" Morganfield is an American blues singer and guitarist, who is the son of Muddy Waters.

Darlene Conley was an American actress.

Stanley Mazor is an American microelectronics engineer who was born on 22 October 1941 in Chicago, Illinois. He is one of the co-inventors of the world's first microprocessor architecture, the Intel 4004, together with Ted Hoff, Masatoshi Shima, and Federico Faggin.

John Graham "Red" Kerr was an American basketball player, coach, and color commentator. He played in the NBA from 1954 to 1966, mainly as a member of the Syracuse Nationals. He later held several coaching and administrative positions before embarking on a thirty-three year career as a television color commentator for the Chicago Bulls.

John Mace Grunsfeld is an American physicist and a former NASA astronaut. He is a veteran of five Space Shuttle flights and has served as NASA Chief Scientist. His academic background includes research in high energy astrophysics, cosmic ray physics and the emerging field of exoplanet studies with specific interest in future astronomical instrumentation. After retiring from NASA in 2009, he served as the Deputy Director of the Space Telescope Science Institute in Baltimore, Maryland. In January 2012, he returned to NASA and served as associate administrator of NASA's Science Mission Directorate (SMD). Grunsfeld announced his retirement from NASA in April 2016.

Edward Reilly Stettinius Jr. was an American businessman who served as United States Secretary of State under Presidents Franklin D. Roosevelt and Harry S. Truman from 1944 to 1945, and as U.S. Ambassador to the United Nations from 1945 to 1946.

Andrew W. Sidaris was an American television and film director, film producer, actor, and screenwriter.

Nick Holonyak Jr. is an American engineer and educator. He is noted particularly for his 1962 invention of a light-emitting diode (LED) that emitted visible red light instead of infrared light; Holonyak demonstrated the LED on October 9, 1962 while working at General Electric's research laboratory in Syracuse, New York. He is a John Bardeen Endowed Chair Emeritus in Electrical and Computer Engineering and Physics at the University of Illinois at Urbana-Champaign, where he has been since leaving General Electric in 1963.

Alexander L. George was an American behavioral scientist. He was the Graham H. Stuart Professor of Political Science Emeritus at Stanford University. He made influential contributions to political psychology, international relations, and social science methodology.