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