Cognomen พุทธพจน์มงคล (พุทธพจน์มงคล 
) , throughout the world, is an extremely rare last name. The family name พุทธพจน์มงคล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| พุทธพจน์มงคล | Thailand |