Family name ลุพธ์ (Lup 
, ลุพธ์ 
) , all around the world, is quite a common cognomen. The family name ลุพธ์ is habitual in Romania, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Moldova. Measured by absolute frequency, the name is most common in Romania, Malaysia, and Indonesia. Much less frequently, ลุพธ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lup | Romania, Taiwan, Italy, Indonesia, Malaysia |
| ลุพธ์ | Thailand |