Cognomen កាយ៉ាង (កាយ៉ាង 
) , worldwide, is an extremely rare surname. The cognomen កាយ៉ាង is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. Likewise, កាយ៉ាង is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| កាយ៉ាង | Cambodia |