Last name กันทใจ (กันทใจ 
) , all around the world, is a very rare surname. The surname กันทใจ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| กันทใจ | Thailand |
สายใจ, ธีรเกียรติ, and กฤติกา