Last name ตุลาธาร (Tuladhar 
, ตุลาธาร 
) , throughout the world, is a common family name. The family name ตุลาธาร is habitual in Nepal, where it is a common surname, Qatar, where it is quite a rare surname, and United Arab Emirates. Not in comparison with a country's population, this name is the most popular in Nepal, the United States, and India. Much less frequently, ตุลาธาร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tuladhar | Australia, United Arab Emirates, Nepal, United States, India |
| ตุลาธาร | Thailand |