Yi may mean:

• In China:
  • Dong Yi, ancient people who lived in the east of China.
  • Hou Yi, a heroic figure from Chinese mythology.
  • Si Ma Yi, grandfather of Emperor Wu of Jìn.
  • The Pinyin pronunciation for the Mandarin word for "one."
  • Wu Yi, Vice Premier of China
  • Yi (drinkware), the ancient Chinese drinkware.
  • Yi (nationality), an ethnic group of China.
  • Yi Jian Lian, a Chinese NBA basketballer.
  • 宜瀏 Yi Liu, a dialect of the Gan language of Jiangxi.
  • Yi script, the writing of Yi.
• In Korea:
  • The Korean pronunciation of the Chinese name Li or Lee.
  • Yi I, a Korean Confucian scholar.
  • Yi Sun Sin, a Korean admiral.
• In Ukraine
  • Yi (Cyrillic), written as Ї or ї, a letter of the Ukrainian alphabet.
• In Uruguay
  • Yi River, a river in Uruguay.

• Yi (dinosaur), the dinosaur with the shortest name.