Family name ถิรเบ็ญจวรรณ (ถิรเบ็ญจวรรณ 
) , across the world, is an extremely rare cognomen. The cognomen ถิรเบ็ญจวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ถิรเบ็ญจวรรณ | Thailand |