Yi (易), Yick, or Yik is a Chinese surname.

A 2013 study found that it was the 114th most-common name, shared by 1.75 million people, or 0.130% of the population, with the largest province being Hunan.

[1] According to the book Hundred Family Surnames, the Yi family originated from Jiang (姜) family who moved to Yi county (present day Chang county in Hebei province).

During the period of Qin dynasty, the Yi family were mainly situated at Shandong and Henan.

At the end of Eastern Han dynasty until the beginning of Southern and Northern Dynasties period, they started to scatter across the central plains, and moving toward present day Hunan province.