Family name Yawalak (Yawalak 
) , worldwide, is an extremely rare cognomen. Much more frequently, Yawalak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yawalak | France, United States, Thailand |
Alland, Darrah, Turner, Saengow, Phomakote, Rodklaing, Samranrit, Saengchan, Bunthiang, Thawitsang, Wongsarnpigoon, Klayprayong, Ratanavanich, and Maneerattanarungruea