Chi

Chi may refer to:

Chi (length) (尺), a traditional Chinese unit of length ("Chinese foot"), approximately 1/3 of a meter
Chi (mythology) (螭), a dragon in Chinese mythology
Ch'i or qi (氣), "life force" in Chinese culture

A probability distribution in mathematics:
- Chi distribution
- Chi-squared distribution
Chi site, a DNA sequence that serves as a recombination hot spot
Creatinine height ratio, a metric used in determining body composition
A symbol for electronegativity

Chi (magazine), an Italian magazine
Chi (Chobits), a character in Chobits media
Chi, a character in Chi's Sweet Home media
"Chi", a song by Korn from Life Is Peachy
Cationic Hydration Interlink (CHI), a beauty products company owned by Farouk Shami

CHI may stand for:

Chile, the country.
Carvill Hurricane Index, a measure of hurricane damage potential
Catholic Health Initiatives, a faith-based, non-profit health system
Channel Islands (Chapman code: CHI)
Chichester, England, is known as Chi by local people in West Sussex
Chingford railway station, railway station code
Child Health International, a UK based charity for children's health (especially Cystic Fibrosis) in poor countries
Columbia Helicopters, an American aircraft manufacturer
Commission for Health Improvement, a former non-departmental public body of the Department of Health in the United Kingdom
Computer-human interaction or human-computer interaction, the study of the interaction of computers and people
- CHI (conference), an annual conference on computer-human interaction
CHI, a secret society at Longwood University
CHI, the IATA code for all Chicago airports
CHI, the Amtrak code for Chicago Union Station
Canada Health Infoway, a not-for-profit organization engaged in the development of a pan-Canadian electronic health record (EHR) system
Community Health Index, a measure of the health of online communities
Community Health Index (Scotland), a system of patient identification used in Scottish public healthcare
Closed head injury