Cheung is a Cantonese romanization of several Chinese surnames, including the one written as 張 in Traditional characters and 张 in Simplified characters ( Zoeng1; Zhāng; Chang), and the one written in both Traditional characters and Simplified characters as 章. Sometimes, 蔣 (蒋) is also spelled as Cheung instead of Chiang/Jiang due to its Cantonese pronunciation.
It is a fairly common American surname, listed 3,672th during the 1990 US Census and 2,069th during the year 2000 US Census.
It is also used to represent the word 長, which has a different pronunciation, as in Cheung Kong Holdings.
List of people with the surname
References
Cheung Wikipedia(Text) CC BY-SA