Family name Boonklay (Boonklay 
) , in all the world, is a very rare cognomen. The last name Boonklay is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Boonklay | Thailand |
Anong, Vichien, Noppanun, Channarong, and Nattharika