Last name Boonyasit (บุญสิทธิ์ 
, บุณยสิทธิ์ , Boonyasit 
) , globally, is quite a rare cognomen. The family name Boonyasit is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname, and Cambodia, where it is a very rare surname. Also, Boonyasit is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| บุญยสิทธิ์, บุณยสิทธิ์, บุญสิทธิ์ | Thailand |
| Boonyasit | Cambodia, United States, Thailand |