Surname Thanaruang (Thanaruang 
) , worldwide, is a very rare family name. The family name Thanaruang is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname, and Malaysia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thanaruang | Malaysia, Thailand |
Siwapat, Panuwat, Saknarin, Siwaporn, Phanumas, Thinapat, Pattharasiri, and Pattharasiru