Last name Kantrasiri (กันตสิริ 
, Kantrasiri 
) , globally, is a very rare surname. The surname Kantrasiri is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Likewise, Kantrasiri is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| กันตสิริ | Thailand |
| Kantrasiri | United States, Thailand |