Family name เกษมพจน์มาศ (เกษมพจน์มาศ 
) , throughout the world, is a very rare cognomen. The last name เกษมพจน์มาศ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เกษมพจน์มาศ | Thailand |