Family name Lerthattasin (Lerthattasin 
) , worldwide, is a very rare last name. The surname Lerthattasin is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lerthattasin | Thailand |
Panada, Parinya, Jirawan, Chonticha, and Manassanan