Last name สิริโรจน์วัชร (สิริโรจน์วัชร 
) , all over the world, is an extremely rare surname. The cognomen สิริโรจน์วัชร is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| สิริโรจน์วัชร | Thailand |