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Family name Grudkin (Grudkin
, Грудкин
) , in all the world, is a rare cognomen. The last name Grudkin is characteristic of Northern Europe, particularly Estonia, where it is a rare surname, Lithuania, and Finland. Not in comparison with a country's population, the name is most common in Russia, Lithuania, and Finland.
| VARIANT | COUNTRY |
|---|---|
| Grudkin | Estonia, Lithuania, Finland, Russia, Canada |
| Грудкин | Ukraine, Russia, Kazakhstan |