Family name Wiansanthia (Wiansanthia 
) , in all the world, is a very rare cognomen. The cognomen Wiansanthia is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wiansanthia | Thailand |
Praphit, Aunchasa, Chiangmai, and Phitchanan