Family name Natthithayakul (Natthithayakul 
) , in the world, is a very rare cognomen. The last name Natthithayakul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Natthithayakul | Thailand |
Somporn, Lapatlada, Natthiya, Phuvanate, Phitchadarat, and Natthanont