Last name เมธาธัญ (เมธาธัญ 
) , throughout the world, is a very rare family name. The last name เมธาธัญ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, เมธาธัญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เมธาธัญ | Thailand |