Surname กุลธาโร (กุลธาโร 
, Kultharo , Gultharo ) , all over the world, is a rare cognomen. The surname กุลธาโร is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gultharo, กุลธาโร, Kultharo | Thailand |