Worldwide, Dhammasiri (ธรรมศิริ 
, Dhammasiri 
) is a very rare unisex first name. The first name Dhammasiri is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare unisex name. Much more frequently, Dhammasiri is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| ธรรมศิริ | Thailand |
| Dhammasiri | United States, Thailand |