Last name เจิมเพิ่มโรจน์ (เจิมเพิ่มโรจน์, Jermpermroj 
) , in the entire world, is an extremely rare family name. The family name เจิมเพิ่มโรจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jermpermroj | Thailand |