Surname Nitilak (นิติลักษณ์ 
, Nitilak 
) , worldwide, is an extremely rare last name. The family name Nitilak is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Predominantly, Nitilak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| นิติลักษณ์ | Thailand |
| Nitilak | Thailand, India |