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

James William Guercio is an American music producer, musician, songwriter, and director. He is best known for his work as the producer of Chicago's first eleven studio albums during the Terry Kath years. Guercio also produced the early recordings of The Buckinghams and Blood, Sweat & Tears. He has worked briefly in the motion picture industry as a producer and director. In the mid-1970s, Guercio managed the Beach Boys and was a member of their backing band.

David Bruce was an American film actor, known for his chilling performance as Ted Allison in The Mad Ghoul. He was a company member of Peninsula Players Theatre in Fish Creek, Wisconsin in 1939.

Arnold Laven was an American film and television director and producer. He was one of the founders and principals of the American film and television production company Levy-Gardner-Laven. Laven was a producer of, among other things, the western television series The Rifleman and The Big Valley. He also directed motion pictures, including Without Warning!, The Rack, The Monster That Challenged the World, Geronimo, Rough Night in Jericho, and Sam Whiskey. In the 1970s and early 1980s, Laven directed dozens of episodes of television series, including episodes of Mannix, The A-Team, Hill Street Blues, The Six Million Dollar Man, Fantasy Island, The Rockford Files and CHiPs.

James Olson is a retired American actor.

George E. Marshall was an American actor, screenwriter, producer, film and television director, active through the first six decades of film history.

William Slavens McNutt, was an American screenwriter. He wrote for 28 films between 1922 and 1939. He was nominated for an Academy Award on two separate occasions. At the 5th Academy Awards, he was nominated for the Academy Award for Best Story for Lady and Gent. In 1936, he was nominated for Adapted Screenplay for the film The Lives of a Bengal Lancer. He was born in Urbana, Illinois and died in San Fernando, California.

George A. Huff, Jr. was an American football and baseball player, coach, and college athletics administrator. Huff served as the head football coach at the University of Illinois at Urbana–Champaign from 1895 to 1899, compiling a record of 21–16–3. He was also the head baseball coach at Illinois from 1896 to 1919, tallying a mark of 317–97–4, and the athletic director at Illinois from 1901 to 1935. Huff Hall at the University of Illinois in Champaign is named in his honor.

Clyde Martin Reed was an American politician from Kansas who served as both the 24th Governor of Kansas and U.S. Senator from that state.

Henry Clay Warmoth was an American attorney and veteran Civil War officer in the Union Army who was elected governor and state representative of Louisiana. A Republican, he was 26 years old when elected as 23rd Governor of Louisiana, one of the youngest governors elected in United States history. He served during the early Reconstruction Era, from 1868 to 1872.

Henry Hubert Turner was an American endocrinologist, noted for his published description of Turner syndrome in 1938 at the annual meeting of the Association for the Study of Internal Secretions. He served as chief of endocrinology and as associate dean of the University of Oklahoma College of Medicine.