Last name Dhammasiri (ธรรมศิริ 
, Dhammasiri 
) , worldwide, is quite a rare surname. The surname Dhammasiri is characteristic of Thailand, where it is quite a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Dhammasiri is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ธรรมศิริ | Thailand |
| Dhammasiri | United States, Thailand |