Last name จันทยาง (จันทยาง 
, Junthayang , Chantayang 
) , worldwide, is a very rare surname. The last name จันทยาง is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Junthayang, จันทยาง | Thailand |
| Chantayang | United States, Thailand |