Yi

Yi or YI may refer to:

Philosophic principle

 * Yi (philosophy) (义; 義, righteousness, justice) among the Three Fundamental Bonds and Five Constant Virtues

Ethnic groups

 * Dongyi, the Eastern Yi, or Tung-yi (Chinese: 夷, Yí), ancient peoples who lived east of the Zhongguo in ancient China
 * Yi people (Chinese: 彝, Yí; Vietnamese: Lô Lô), an ethnic group in modern China, Vietnam, and Thailand

Language

 * Yi (Cyrillic), the letter of the Ukrainian alphabet written "Ї" and "ї"
 * Yi language or the Nuosu language spoken by the Yi people of China
 * Yi script, either of two scripts used to write the Yi languages
 * Yiddish (ISO 639-1 language code: yi), the historical language of the Ashkenazi Jews

Mythology and religion

 * Yi the Archer or Houyi, a heroic archer and hunter in Chinese mythology
 * Yi (husbandman), also known as Boyi or Bo Yi, a heroic user of fire and government minister in Chinese mythology

Surname

 * Yi (Chinese surname), romanization of several Chinese surnames, for example:
 * Yi Jianlian (born 1984), Chinese basketball player
 * Yi Yuanji (1000–1064), 10th-century Chinese painter
 * Yi Siling (born 1989), Chinese shooter, the first athlete to win a gold medal at the London 2012 Olympic Games
 * Yi (Korean surname), including
 * House of Yi, household of Joseon and the Korean Empire
 * Yi Sun-sin (1545–1598), Korean admiral

Given name

 * Lu Yi (disambiguation), several persons
 * Wu Yi (politician) (born 1938), Vice Premier of China

Places

 * Yi County (disambiguation), two counties in China
 * Yí River, a river in Uruguay
 * Yi River (Henan), a river in China
 * Serbia and Montenegro (FIPS country code: YI), a country in Southeast Europe

Other uses

 * Yi (dinosaur)
 * Yi (drinkware) (彝), former name for the zun, a traditional bronze drinkware of ancient China
 * Yi (prefix symbol), the prefix symbol of the binary unit prefix yobi, representing 280, the equivalent of the decimal prefix yotta- (Y)
 * Yi, an East Asian counting unit meaning 100,000,000
 * Yi (vessel) (匜), a different kind of bronze vessel used in traditional rituals in ancient China
 * YI Technology, a Chinese company that manufactures cameras and computer vision technologies
 * I Ching, or Yijing, ancient Chinese text
 * "Yi" and "iMi", songs by American indie folk bank Bon Iver