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

Gil Shaham is an American violinist of Israeli Jewish descent.

Lee Richardson was an American character actor who frequently appeared in the films of Sidney Lumet.

Barbara Barrie is an American actress of film, stage and television. She is also an author.

Richard D. Alexander was an American zoologist who was a professor at the University of Michigan and curator at the university's museum of zoology of in Ann Arbor, Michigan. His scientific pursuits integrated the fields of systematics, ecology, evolution, natural history and behavior. The salient organisms in his research are wide-ranging, from the orthopterans and cicadidae (cicadas) to vertebrates: dogs, horses, and primates, including humans.

Clinton Joseph Davisson was an American physicist who won the 1937 Nobel Prize in Physics for his discovery of electron diffraction in the famous Davisson–Germer experiment. Davisson shared the Nobel Prize with George Paget Thomson, who independently discovered electron diffraction at about the same time as Davisson.

Robert Joseph "Bob" Miller is an American former attorney and politician who served as the 26th Governor of Nevada from 1989 to 1999. A member of the Democratic Party, he had previously served as the Lieutenant Governor of Nevada from 1987 to 1989. After his re-election in 1994, no Nevada Democrats were elected to the governor of Nevada for 24 years until Steve Sisolak won his former governor's mansion in 2018.

Robert Martin Friedland is an American/Canadian billionaire financier in the mining industry. Since the early 1980s, he has specialized in securing funding for the exploration and development of mineral and energy resources and technology ventures. He is the founder and chairman of his private, family-owned firm, Ivanhoe Capital Corporation, which is active in capital markets, focused on emerging markets. He is the founder and co-chairman of Ivanhoe Mines – a Canadian public company listed on the Toronto and OTCQX exchanges.

Robert Gottschalk was an American camera technician and founder of Panavision.

Robert Krimmer is an American lawyer and former actor. Formerly known professionally as Wortham Krimmer, Krimmer has reverted to his birth name of Robert Krimmer.