Surname ดํารงศิริ (ดํารงศิริ 
) , in all the world, is a rare last name. The last name ดํารงศิริ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, ดํารงศิริ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ดํารงศิริ | Thailand |