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