Family name Ngiwlai (Ngiwlai 
) , worldwide, is a very rare last name. The last name Ngiwlai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ngiwlai | Thailand |
Kannika, Veeranuch, Chawanwit, and Rungjittra