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: , ''Yí''), ancient peoples who lived east of the Zhongguo in ancient China * Yi people (Chinese: , ''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 Yiddish, historically Judeo-German, is a West Germanic language historically spoken by Ashkenazi Jews. It originated in 9th-century Central Europe, and provided the nascent Ashkenazi community with a vernacular based on High German fused with ...

(ISO 639-1 language code: yi), the historical language of the Ashkenazi Jews * Yi, an obsolete Japanese kana

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

People

Surname

* Yi (surname 易) * Yi (surname 伊) * 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 The State Union of Serbia and Montenegro or simply Serbia and Montenegro, known until 2003 as the Federal Republic of Yugoslavia and commonly referred to as FR Yugoslavia (FRY) or simply Yugoslavia, was a country in Southeast Europe locate ...

(FIPS country code: YI), a country in Southeast Europe

Other uses

* ''Yi'' (dinosaur) * Yi (drinkware) (), 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'' ( zh, t=億 , s=亿, link=no), an East Asian counting unit meaning 100,000,000 * Yi (vessel) (), 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 band Bon Iver