Cognomen พิมใจใส (Pimchai 
, พิมใจใส , Pimjaisai ) , around the world, is a rare surname. The cognomen พิมใจใส is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is a very rare surname. Also, พิมใจใส is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pimchai | Thailand, United States, Malaysia |
| พิมใจใส, Pimjaisai | Thailand |