Last name ธัญญาสิริ (Tanyasiri 
, ธัญญาสิริ ) , around the globe, is a very rare cognomen. The family name ธัญญาสิริ is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. More prevalently, ธัญญาสิริ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tanyasiri | United States, Thailand |
| ธัญญาสิริ | Thailand |