Cognomen ธีรกุลเชษฐ์ (ธีรกุลเชษฐ์ 
, Teerakunchet , Thirakunchet ) , in the world, is a very rare last name. The family name ธีรกุลเชษฐ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Teerakulchet, ธีรกุลเชษฐ์, Teerakunchet, Thirakunchet | Thailand |