Cognomen Šimkūnas (Šimkūnas 
) , around the world, is a very rare last name. The cognomen Šimkūnas is habitual in Northern Europe, particularly Lithuania, where it is quite a rare surname.
| aleksas šimkūnas Lithuanian actor, LT (b. 1908) |
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| algirdas šimkūnas (b. 1927) |
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| simonas šimkūnas LT (b. 1930) |
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| antanas šimkūnas (b. 1931) |
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| zenonas šimkūnas (b. 1931) |
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| vytautas šimkūnas (b. 1956) |
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