In all the world, บุญสิทธิ์ (บุญสิทธิ์ 
, Boonsit 
, Boonyasit 
) is a rare primarily boy's, but very infrequently female first name. The forename บุญสิทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare predominantly boy's, but very seldom female name. More frequently, บุญสิทธิ์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| บุญสิทธิ์ | Thailand |
| Boonsit | China, United States, Thailand |
| Boonyasit | United States, Cambodia, Thailand |
| Bunsit | United Kingdom, Malaysia, Philippines, United States, Thailand |