Cognomen Dangjay (Dangjay 
) , around the globe, is a very rare family name. The cognomen Dangjay is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dangjay | Thailand |
Somwang, Katsraporn, Narawadee, and Pattaradej