Surname วันยา (Ndaya 
, Wantaya 
, วันยา ) , in the entire world, is quite a rare last name. The last name วันยา is characteristic of Sub-Saharan Africa, particularly the Democratic Republic of the Congo, where it is quite a rare surname, Cameroon, and Kenya, where it is a rare surname. Much less frequently, วันยา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ndaya | Kenya, France, Cameroon, Angola, Democratic Republic of the Congo |
| Wantaya | New Zealand, Thailand, United States |
| วันยา | Thailand |