The initialism CHI may refer to:

Health

• Catholic Health Initiatives, a hospital network in the United States
• Child Health International, UK-based charity
• Commission for Health Improvement, former UK body
• Community Health Index, Scotland
• Comprehensive health insurance
• Creatinine height ratio, estimating protein in body composition

Places & Sports Teams

• An abbreviation for the U.S. city of Chicago, Illinois and its major professional sports teams
  • Chicago Bears of the National Football League
  • Chicago Blackhawks of the National Hockey League
  • Chicago Bulls of the National Basketball Association
  • Chicago Cubs, also CHC, of Major League Baseball
  • Chicago Fire of Major League Soccer
  • Chicago White Sox, also CWS, of Major League Baseball
• Chile (in sports: IOC and FIFA code CHI)
• Channel Islands, a UK dependency (Chapman code: CHI)

Science and technology

• Carvill Hurricane Index
• Computer–human interaction or human–computer interaction
  • CHI (conference)
• CHI (compiler), an Intel C compiler for heterogeneous integration
• Hyperbolic cosine integral, in trigonometry

Transit

• Chingford railway station, United Kingdom — railway station code
• CHI, the IATA code for all Chicago airports
• CHI, the Amtrak code for Chicago Union Station

Other

• Chichester and Harbour Independents, a minor British political party (Chichester, England)
• Columbia Helicopters, an American aircraft manufacturer
• CHI, one of Longwood University § Secret societies (Virginia, USA)
• Cationic Hydration Interlink, a hair-care brand owned by Farouk Systems (founded by Farouk Shami).

See also

• All pages with titles beginning with CHI
• All pages with titles containing CHI
• Chi (disambiguation)
• Chic (disambiguation)
• Chik (disambiguation)