Yun may refer to: Yǔn, Chinese name of Xionites, a nomadic tribe of Central Asia Yun (Chinese name) (云/雲), a Chinese family name Yeon, or Yun, Korean (or Dutch given name) family name Yun (Korean surname), or Yoon, Korean family name Yun (Street Fighter), a Street Fighter character Yun, the name of a Dark Jedi in the Star Wars Expanded Universe Yun OS, mobile operation system developed by Alibaba Yun County, Hubei, in China Yun County, Yunnan, in China Yunnan, abbreviated as Yún, province of China Brother Yun, a Chinese Christian Arduino Yún, a single-board microcontroller, notable as the first official Arduino board using Linux ISO 4217 for Yugoslav Convertible dinar