Cognomen ไวยโภคา (ไวยโภคา 
, Waipoka , Waiyaphoka ) , all around the world, is a rare family name. The last name ไวยโภคา is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Waiyaphoka, ไวยโภคา, Waiyaphokha, Waipoka | Thailand |