Cognomen Chulaiad (Chulaiad 
) , around the world, is a very rare surname. The cognomen Chulaiad is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chulaiad | Thailand |
Sudapan, Porntip, Phensri, Ekapong, and Tassaneeya