Last name ทัญญา (Thanya 
, ทัญญา ) , in all the world, is a rare cognomen. The family name ทัญญา is habitual in Honduras, where it is a rare surname, Mexico, and United Arab Emirates. Not in comparison with a country's population, it most frequently occurs in Mexico, Thailand, and Myanmar. More prevalently, ทัญญา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thanya | Sri Lanka, Mexico, Democratic Republic of the Congo, Thailand, Guatemala |
| ทัญญา | Thailand |