Chicago, Illinois, is the third-most populous city in the United States.

Chicago may also refer to:

• New Chicago, California, an unincorporated community formerly known as "Chicago" in Amador County
• Port Chicago, California, a former town and naval station in Contra Costa County
• Chicago River, a river in Chicago, Illinois
• Lake Chicago, a prehistoric lake from the Wisconsin Glacial Period
• Chicago, Kansas, a formerly populated community

• Chicago, Zimbabwe, a suburb of Kwekwe

• Chicago (band), a jazz rock band founded in 1967
  • Chicago (album), 1970
• "Chicago" (Graham Nash song), 1970
• "Chicago" (Michael Jackson song), also known as "She Was Lovin' Me"
• "Chicago song", a song on David Sanborn's A Change of Heart, 1987
• "Chicago" (Sufjan Stevens song), 2005
• "Chicago" (That Toddlin' Town), a 1922 song by Fred Fisher
• Chicago house, a genre of electronic dance music
• "Chicago", a 1977 single by Kiki Dee
• "Chicago", a song by Groove Armada from the 1999 album Vertigo
• "Chicago", a song by Hieroglyphics from the 2003 album Full Circle
• "Chicago", a song by Kate Voegele from the 2007 album Don't Look Away
• "Chicago", a song by The Devil Wears Prada from the 2011 album Dead Throne
• "Chicago", a song by Tom Waits from the 2011 album Bad as Me
• "Chicago", a song by Louis Tomlinson from the 2022 album Faith in the Future

• Chicago (play), 1926, written by Maurine Dallas Watkins
  • Chicago (1927 film), based on the 1926 play
  • Chicago (musical), first performed in 1975, based on the 1926 play
    • Chicago (2002 film), based on the 1975 musical
• "Chicago" (Prison Break), a 2007 TV episode
• Chicago, a 1965 play by Sam Shepard
• Chicago (franchise), a group of NBC television dramas set in the Illinois city

• Chicago (magazine), a lifestyle periodical about the Illinois city
• Chicago (manga), by Yumi Tamura
• Chicago (novel), by Egyptian author Alaa-Al-Aswany
• "Chicago" (poem), by Carl Sandburg
• The Chicago Manual of Style, for American English

• Chicago (bridge card game), a form of contract bridge
• Chicago (poker card game), a Swedish poker game (or any one of several stud poker variants, including "Chicago", "Big Chicago", and "Little Chicago")
• Chicago (pool), a "money ball" pool gambling game
• Chicago 90, a 1989 video game by Microïds
• Chicago, a dice game similar or synonymous to Farkle

• Judy Chicago (born 1939), American feminist artist

• 334 Chicago, a large main-belt asteroid found in 1892
• Chicago (typeface), a classic Apple Macintosh font
• Chicago Convention on International Civil Aviation, a 1944 agreement
• Chicago Pile-1, the world's first nuclear reactor
• Windows Chicago, the code name for Windows 95

Any of several disciplines, some associated with the University of Chicago, including

• Chicago school (architecture)
• Chicago school (literary criticism)
• Chicago school (sociology)
• Chicago school of economics

• Chicago Bears, a professional American football team of the NFL's National Football Conference, Northern Division
• Chicago Blackhawks, a professional ice hockey team of the NHL's Western Conference, Central Division
• Chicago Bulls, a professional basketball team of the NBA's Eastern Conference, Central Division
• Chicago Cubs, a professional baseball team of the MLB's National League, Central Division
• Chicago Dogs, an independent professional baseball team based in Rosemont, Illinois
• Chicago Fire Soccer Club, a professional soccer team in the MLS' Eastern Conference based in the suburb of Bridgeview
• Chicago Red Stars, a professional soccer team in the National Women's Soccer League, based in the suburb of Bridgeview
• Chicago Sky, a professional basketball team of the WNBA's Eastern Conference
• Chicago White Sox, a professional baseball team of MLB's American League, Central Division
• Chicago Wolves, a professional ice hockey team of the American Hockey League's Western Conference, Central Division and affiliate of the NHL's St. Louis Blues
• Club Atlético Nueva Chicago, an association football (soccer) club of Argentina's Primera División (premier division) in Mataderos, Buenos Aires

• Chicago Blitz, a professional American football team of the United States Football League (1982–1984)
• Chicago Boosters, an Independent American football team which played in one APFA game (1920–21)
• Chicago Bruisers, a professional arena football team and charter member of the Arena Football League (1987–1989)
• Chicago Bulls (AFL, 1926), a professional American football team
• Chicago Cardinals (NFL, 1920-1959), a professional American football team
• Chicago Cardinals (ice hockey), a professional team in the American Hockey Association (1926–1927)
• Chicago Indians, an American football team of the former minor American Football League (1938–39)
• Chicago Packers/Zephyrs, a professional basketball team of the National Basketball Association (1961–1963), now the Washington Wizards
• Chicago Rockets ("Chicago Hornets" in 1949), a professional American football team of the All-America Football Conference (1946–1949)
• Chicago Rush, a professional arena football team of the Arena Football League (2001–2013)
• Chicago Shamrocks, a professional ice hockey team in the American Hockey Association (1930–1932)
• Chicago Stags, a professional basketball team of the National Basketball Association (1946–1950)
• Chicago Sting, an American professional NASL soccer team (1974–1988)

• USS Chicago, any of several U.S. Navy vessels
• Chicago (aircraft), a plane used in the first successful air circumnavigation of the globe
• Chicago (CTA), Chicago Transit Authority
  • Chicago station (CTA Blue Line), or Chicago and Milwaukee
  • Chicago station (CTA Brown and Purple Lines), or Chicago and Franklin
  • Chicago station (CTA Red Line), or Chicago and State
• City of Chicago (train), a passenger train
• Chicago Tunnel Company, a former narrow-gauge freight network under downtown Chicago

• Chicago Park, California, an unincorporated community in Nevada County
• Chicago Heights, Illinois, Cook County
• Chicago Ridge, Illinois, Cook County
• North Chicago, Illinois, Lake County
• South Chicago Heights, Illinois, Cook County
• West Chicago, Illinois, DuPage County
• East Chicago, Indiana, a city
• New Chicago, Indiana, a town
• Chicago Junction, Ohio, former name of Willard, Ohio
• Little Chicago, Minnesota, an unincorporated community
• Chicago Corners, Wisconsin, an unincorporated community
• Chicago Junction, Wisconsin, an unincorporated community
• Little Chicago, Wisconsin, an unincorporated community
• "My Kind of Town", a song sometimes mistakenly referred to as "Chicago"
• Chicago shooting (disambiguation)
• Chicagoland (disambiguation)
• All pages with titles beginning with Chicago