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

Richard Lee "Dick" Schmalensee is the John C. Head III Dean, Emeritus and the Howard W. Johnson Professor of Management, Emeritus at the MIT Sloan School of Management. He is also Professor of Economics, Emeritus, at the Department of Economics at MIT.

Leonard Mlodinow is an American theoretical physicist and mathematician, screenwriter and author. In physics, he is known for his work on the large N expansion, a method of approximating the spectrum of atoms based on the consideration of an infinite-dimensional version of the problem, and for his work on the quantum theory of light inside dielectrics.

Joseph Peter Kerwin, , is an American physician and former NASA astronaut, who served as Science Pilot for the Skylab 2 mission from May 25–June 22, 1973. He was the first physician to be selected for astronaut training. Kerwin is the last surviving crew member of Skylab 2.

Carmelita Geraghty was an American silent-film actress and painter.

Jon Adams Jerde, was an American architect based in Venice, Los Angeles, California, founder and chairman of The Jerde Partnership, a design architecture and urban planning firm specializing in the design of shopping malls that has created a number of commercial developments around the globe. Jerde became well known as an innovator in the design of malls and related spaces. His firm has grown into a multi-disciplinary firm with offices in Los Angeles, Orange County, California, Hong Kong, and Shanghai.

Moira Jane Harris Sinise is a retired American actress.

Leah Jean Poulos-Mueller is an American retired speed skater. She competed at the 1972, 1976 and 1980 Winter Olympics, and won two silver medals in 1980 and one in 1976. She garnered more than 65 Olympic, world, and international speed skating medals and titles during a career that spanned 12 competitive years and three Olympic teams. After retiring from competitions she had a long career in law as a civil litigator.

Patricia Roberts Harris was an American government official and diplomat who served under President Jimmy Carter as United States Secretary of Housing and Urban Development, and United States Secretary of Health, Education, and Welfare. She was the first African American woman to serve in the United States Cabinet, and the first to enter the line of succession to the Presidency. She previously served as United States Ambassador to Luxembourg under President Lyndon B. Johnson, and was the first African-American woman to represent the United States as an ambassador.

David Rockwell is an American architect and designer. He is the founder and president of Rockwell Group, a 250-person cross-disciplinary architecture and design practice based in New York City with satellite offices in Madrid and Los Angeles.