Family name Permwanichakul (Permwanichakul 
) , in the entire world, is a very rare surname. The last name Permwanichakul is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Permwanichakul | Thailand |
Ratkarn, Tanyapat, Nattaroj, Wannapan, and Nanthachaporn