Yi

Yi may mean:
* Yi Sun-sin, a Korean admiral victorious in many naval battles
* Wu Yi, Vice Premier of China
* Yi people, an ethnic group in China
* Yi Jianlian, Chinese NBA basketball player
* Yi language
* Yi script
* Yi, ancient people who lived east of China, see Dongyi
* Yi (Cyrillic) (Ї, ї), a letter of the Ukrainian alphabet
* Yi (drinkware), the ancient Chinese drinkware.
* Yí River, a river in Uruguay
* Yi River (China), a river in China
* Lee (Korean name)
* Serbia and Montenegro (FIPS country code YI)
* Yiddish language (ISO 639 language code yi)
* Yi royal family, or Joseon Dynasty of Korea
* Yi, an abbreviation for the IEEE prefix yobi which represents 2⁸⁰.
* An abbreviation for , and it's sequel, Yoshi's Island DS
* Hou Yi, a heroic figure from Chinese mythology.
* Yi (editor), a text editor written in Haskell