Last name Tvardovskiy (Tvardovskiy 
, Твардовский 
) , in the world, is a rare cognomen. The surname Tvardovskiy is characteristic of Belarus, where it is a rare surname, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Tvardovskiy | Russia, Ukraine |
| Твардовский | Russia, Ukraine, Kazakhstan, Belarus |