Family name Suwanarut (Suwanarut 
) , in the entire world, is a very rare last name. The family name Suwanarut is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Suwanarut | Thailand |
Pichet, Pitchaya, Thidarat, and Pitchakorn