Surname บุญธวัชศักดิ์ (บุญธวัชศักดิ์ 
) , throughout the world, is a very rare cognomen. The family name บุญธวัชศักดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| บุญธวัชศักดิ์ | Thailand |