Chi

Chi or CHI may refer to:

Greek

 * Chi (letter) (Χ or χ), the twenty-second letter of the Greek alphabet

Chinese

 * Chi (length) (尺), a traditional unit of length, about ⅓ meter
 * Chi (mythology) (螭), a dragon
 * Chi (surname) (池, pinyin: chí)
 * Ch'i or qi (氣), "energy force"
 * Chinese language (ISO 639-2 code "chi")
 * Ji (surname), various surnames written Chi in Wade–Giles

Arts and entertainment

 * Chi (2013 film), a Canadian documentary film
 * Chi (2019 film), a Burmese drama film
 * Chi: On the Movements of the Earth, a manga series by Uoto
 * The Chi, an American drama television series
 * Chi (Chobits), a character in the manga series Chobits
 * Sailor Chi, a character in the manga series Sailor Moon
 * Chi, a character in the manga series Chi's Sweet Home
 * "Chi", a song by Korn from the 1996 album Life Is Peachy

Science and mathematics

 * Chi, the hyperbolic cosine integral
 * A symbol for electronegativity

People

 * Chi Cheng (musician) (1970–2013), American musician
 * Chi McBride (born 1961), American actor
 * Chi Onwurah (born 1965), British politician

Other uses

 * Chi (kana), (hiragana ち, katakana チ)
 * Chi, a person's guardian spirit in the Odinani beliefs of the Igbo people of Nigeria
 * Chi River, Thailand
 * an abbreviation for Chichester, England
 * Chi (magazine), an Italian magazine
 * Chi (instrument) a Chinese flute
 * Chingford railway station, railway station code