Surname Ngaobenjakul (Ngaobenjakul 
) , worldwide, is an extremely rare last name. The cognomen Ngaobenjakul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ngaobenjakul | Thailand |
Parit, Warinda, Kawinthida, and Phatthadon