Last name พิบูลสวัสดิ์ (พิบูลสวัสดิ์ 
, Pibulsawas , Pibulsawad ) , in the world, is a very rare family name. The last name พิบูลสวัสดิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pibulsawad, Pibulsawat, พิบูลสวัสดิ์, Pibulsawas | Thailand |
Phiboonsawad, Phibulsawasdi, Phibulsawatdee, Phibunsahwat, Phibunsawat, Piboolsawas, Piboonsawad, Piboonsawas, and Piboonsawat