Surname Šimkūnaitė (Šimkūnaitė 
) , in all the world, is a very rare family name. The cognomen Šimkūnaitė is characteristic of Northern Europe, particularly Lithuania, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Šimkūnaitė | Lithuania |
| eugenija šimkūnaitė Lithuanian botanist (1920-1996), LT (b. 1920) |
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| gabija šimkūnaitė Lithuanian chess player |
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