Family name รักหทัย (รักหทัย 
) , across the world, is a very rare cognomen. The family name รักหทัย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, รักหทัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| รักหทัย | Thailand |