Last name ทินกุล (ทินกุล 
, Thinakul , Tinnakul 
) , in the world, is a very rare surname. The last name ทินกุล is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ทินกุล, Thinakul | Thailand |
| Tinnakul | United States, Thailand |