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

Cecil Bridgewater is an American jazz trumpeter.

Leslie David Baker is an American actor. He is known for playing paper salesman Stanley Hudson in The Office for nine seasons (2005–2013).

Gretchen Dutschke-Klotz is a German-American activist, and author. In West Berlin and West Germany in 1960s she was active with her husband Rudi Dutschke in the Socialist Students Union (SDS) and the Federal Republic's broader “extra-parliamentary opposition” (APO).

Bruce Alan Beutler is an American immunologist and geneticist. Together with Jules A. Hoffmann, he received one-half of the 2011 Nobel Prize in Physiology or Medicine, for "their discoveries concerning the activation of innate immunity".

Mel Bourne was an American production designer and art director. He was nominated for three Academy Awards in the category Best Art Direction. He was born Melvin B. Bornstein in Chicago, Illinois, the son of Frieda and Max Bornstein.

John Cunningham Whitehead was an American banker and civil servant, a board member of the World Trade Center Memorial Foundation, and, until his resignation in May 2006, chairman of the Lower Manhattan Development Corporation.

Andrew James "A. J." Trauth is an American actor and musician. Trauth is known for playing Alan Twitty on Even Stevens and Josh Mankey on Kim Possible, both programs which aired on Disney Channel.

Carl Richard Hagen is a professor of particle physics at the University of Rochester. He is most noted for his contributions to the Standard Model and Symmetry breaking as well as the 1964 co-discovery of the Higgs mechanism and Higgs boson with Gerald Guralnik and Tom Kibble (GHK). As part of Physical Review Letters 50th anniversary celebration, the journal recognized this discovery as one of the milestone papers in PRL history. While widely considered to have authored the most complete of the early papers on the Higgs theory, GHK were controversially not included in the 2013 Nobel Prize in Physics.

Henry Seymour Kaplan was an American radiologist who pioneered in radiation therapy and radiobiology.