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

Donald Warren Moffett is an American actor known for the recurring role of Joe McCoy on the NBC series Friday Night Lights, as Dean Winston on NBC/The WB series For Your Love, as John Kennish on the ABC Family series Switched at Birth and as Elliott in the TVLand sitcom Happily Divorced. He is also known for his recurring role as Cornelius Rhodes on the NBC television medical drama Chicago Med.

Kenneth "Ken" Charles Henry was a speed skater from the United States.

Cynthia Ann Williams, known professionally as Cynda Williams, is an American actress, singer-songwriter, and writer.

Crispin Freeman is an American voice actor, voice director, and screenwriter who is best known for voicing characters in English-language dubs of Japanese anime, animation, and video games. Some of his prominent anime roles include Zelgadis Graywords in Slayers, Kyon in The Melancholy of Haruhi Suzumiya, Alucard in Hellsing, Kirei Kotomine in Fate/Zero and Fate/stay night: Unlimited Blade Works, Itachi Uchiha in Naruto, and Shizuo Heiwajima in Durarara!!

Raymond "Ray" Ozzie is an American software industry entrepreneur who held the positions of Chief Technical Officer and Chief Software Architect at Microsoft between 2005 and 2010. Before Microsoft, he was best known for his role in creating HCL Notes.

Jack J. Dongarra ForMemRS; is an American University Distinguished Professor of Computer Science in the Electrical Engineering and Computer Science Department at the University of Tennessee. He holds the position of a Distinguished Research Staff member in the Computer Science and Mathematics Division at Oak Ridge National Laboratory, Turing Fellowship in the School of Mathematics at the University of Manchester, and is an adjunct professor in the Computer Science Department at Rice University. He served as a faculty fellow at Texas A&M University's institute for advanced study (2014–2018). Dongarra is the founding director of Innovative Computing Laboratory.

Lois June Nettleton was an American film, stage, radio, and television actress. She received three Primetime Emmy Award nominations and won two Daytime Emmy Awards.

David Andrew Patterson is an American computer pioneer and academic who has held the position of professor of computer science at the University of California, Berkeley since 1976. He announced retirement in 2016 after serving nearly forty years, becoming a distinguished software engineer at Google. He currently is vice chair of the board of directors of the RISC-V Foundation, and the Pardee Professor of Computer Science, Emeritus at UC Berkeley.

Andrew J. Bacevich Jr. ; born July 5, 1947) is an American historian specializing in international relations, security studies, American foreign policy, and American diplomatic and military history. He is a Professor Emeritus of International Relations and History at the Boston University Frederick S. Pardee School of Global Studies. He is also a retired career officer in the Armor Branch of the United States Army, retiring with the rank of colonel. He is a former director of Boston University's Center for International Relations, now part of the Pardee School of Global Studies. Bacevich is the co-founder and president of the Quincy Institute for Responsible Statecraft.

Fulton John Sheen was an American bishop of the Catholic Church known for his preaching and especially his work on television and radio. Ordained a priest of the Diocese of Peoria in 1919, Sheen quickly became a renowned theologian, earning the Cardinal Mercier Prize for International Philosophy in 1923. He went on to teach theology and philosophy at the Catholic University of America as well as acting as a parish priest before being appointed Auxiliary Bishop of the Archdiocese of New York in 1951. He held this position until 1966, when he was made the Bishop of Rochester. He resigned in 1969 as his 75th birthday approached, and was made the Archbishop of the titular see of Newport, Wales.