Yidi may refer to:

  • Yidi (god) (仪狄, a brewer credited with the invention of [alcohol during the reign of Yu the Great
  • Wang Yidi (born 1997), Chinese table tennis player
  • Yidi (夷狄), another name for the traditional 4 groups of barbarians in ancient China
  • Yidi (毅帝), the short posthumous name of the Zhengde Emperor of the Ming Dynasty
  • Yidi (義帝), the short posthumous name of the Tongzhi Emperor of the Qing Dynasty