Family name พันธุ์ธนุสร (พันธุ์ธนุสร 
) , in the entire world, is a very rare last name. The family name พันธุ์ธนุสร is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| พันธุ์ธนุสร | Thailand |