Surname Hemasiri (Hemasiri 
, เหมะศิริ 
) , in the entire world, is a rare cognomen. The cognomen Hemasiri is habitual in Sri Lanka, where it is quite a rare surname, Thailand, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Also, Hemasiri is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hemasiri | Australia, China, Italy, India, Sri Lanka |
| เหมะศิริ | Thailand |