Surname พันธ์เอก (พันธ์เอก 
) , all around the world, is a very rare family name. The family name พันธ์เอก is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, พันธ์เอก is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พันธ์เอก | Thailand |