Family name Roonwart (Roonwart 
) , all around the world, is a very rare last name. The family name Roonwart is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Roonwart | Thailand |
Pakin, Kolchai, Nuttamon, and Puttarakrit