THC Science

Illinois is a state in the United States.

Illinois may also refer to:

Places

Illinois Country, a region of colonial America
Illinois County, Virginia, a county claimed by Virginia during the American Revolutionary War
Illinois Territory, an organized territory of the US from 1809 to 1818
Illinois River, a tributary of the Mississippi River in the state of Illinois
Illinois River (Colorado)
Illinois River (Oklahoma) in Arkansas and Oklahoma
Illinois River (Oregon)
Illinois Township, Pope County, Arkansas

University of Illinois Urbana-Champaign, the largest campus in the University of Illinois system
- Illinois Fighting Illini, this school's intercollegiate athletic program
Illinois College, a private liberal arts college located in Jacksonville, Illinois

SS Illinois (1873), an American Line passenger steamship
SS Illinois (1917), a cargo ship in service with the Harlem Steamship Co and Compagnie Générale Transatlantique
USS Illinois (BB-7), the lead ship of Illinois-class battleship, launched in 1898
USS Illinois (BB-65), a former planned Iowa-class battleship
USS Illinois (SSN-786), a Virginia-class submarine, launched 2016
Battleship Illinois (replica), a full-scale mockup of an Indiana-class battleship

Illinois (band), an American indie rock band
Illinois (Sufjan Stevens album), a 2005 album by Sufjan Stevens
Illinois (Brett Eldredge album), a 2015 album by Brett Eldredge
"Illinois" (song), the state song of Illinois with words by C.H. Chamberlain and music by Archibald Johnston

Illinois Jacquet (1922–2004), jazz saxophone player
Illinois Confederation, a group of Native American tribes
The Illinois, a proposed mile-high skyscraper building designed in 1956 by Frank Lloyd Wright