Surname Tvirbutas (Tvirbutas 
) , in the entire world, is a very rare family name. The last name Tvirbutas is characteristic of Lithuania, where it is quite a rare surname, the United Kingdom, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Tvirbutas | United Kingdom, Lithuania, United States |
| ipolitas tvirbutas Lithuanian actor, LT (b. 1899) |
|