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

Hilary Whitehall Putnam was an American philosopher, mathematician, and computer scientist, and a major figure in analytic philosophy in the second half of the 20th century. He made significant contributions to philosophy of mind, philosophy of language, philosophy of mathematics, and philosophy of science. Outside philosophy, Putnam contributed to mathematics and computer science. Together with Martin Davis he developed the Davis–Putnam algorithm for the Boolean satisfiability problem and he helped demonstrate the unsolvability of Hilbert's tenth problem.

Timothy Duane Hardaway Sr. is an American former professional basketball player and coach. Hardaway played in the National Basketball Association (NBA) for the Golden State Warriors, Miami Heat, Dallas Mavericks, Denver Nuggets and Indiana Pacers. He was a five-time NBA All-Star and All-NBA Team selection. Hardaway won a gold medal with the United States national basketball team at the 2000 Summer Olympics. He was known for his crossover dribble which was dubbed the "UTEP two-step" by television analysts.

Theodore Edward Coneys, known by the nickname "Denver Spiderman", an American drifter who committed a murder in 1941 and subsequently occupied the attic of the victim's home for nine months.

Joseph Sikora is an American actor who starred as Tommy Egan on Power.

Lori Greiner is an American television personality, inventor, and entrepreneur. She is an investor on the reality TV show Shark Tank and its spin-off Beyond the Tank. She has been known as the "Queen of QVC" since 2000, with the premiere of her show Clever & Unique Creations. Greiner is the president and founder of For Your Ease Only, Inc.

Marin Joy Mazzie was an American actress and singer known for her work in musical theater.

Kimberly M. Foxx is an American politician, currently serving as the State's Attorney for Cook County, Illinois. She manages the nation's second largest prosecutor's office and oversees an office of approximately 800 attorneys and 1,500 employees. In 2016, she won the Democratic nomination for State's Attorney against incumbent Anita Alvarez and went on to win the general election in November. She was re-elected in 2020. She is the second African American, after Cecil A. Partee, to hold this position. She ran for the State's Attorney's office on a platform of criminal justice reform, and has often been termed a "reformist", "reform-minded", or "progressive" prosecutor alongside others such as Larry Krasner, Rachael Rollins, Chesa Boudin, Aramis Ayala, Kimberly Gardner, Diana Becton, and Satana Deberry.

Robert Joseph Tonyan Jr. is an American football tight end for the Green Bay Packers of the National Football League (NFL). He played college football at Indiana State University and signed with the Detroit Lions as an undrafted free agent in 2017.

Ann Eliza Young also known as Ann Eliza Webb Dee Young Denning was one of Brigham Young's fifty-five wives and later a critic of polygamy. She spoke out against the suppression of women and was an advocate for women's rights during the 19th century.

Margo Rae Price is an American country singer-songwriter and producer based in Nashville, Tennessee. The Fader has called her "country's next star." Her debut solo album Midwest Farmer's Daughter was released on Third Man Records on March 25, 2016. The album was recorded at Sun Studio in Memphis, Tennessee, and was engineered by Matt Ross-Spang. The album was recorded in three days. On tour, she is backed by her band the Pricetags.