Cognomen Gasiūnas (Gasiūnas 
) , around the globe, is a very rare family name. The family name Gasiūnas is habitual in Northern Europe, particularly Lithuania, where it is quite a rare surname.
| juozas gasiūnas Lithuanian Righteous Among the Nations, LT (b. 1901) |
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| povilas gasiūnas (b. 1897) |
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| ipolitas gasiūnas (b. 1902) |
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| vladas gasiūnas LT (b. 1933) |
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| jonas gasiūnas Lithuanian academic, LT (b. 1954) |
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| giedrius gasiūnas |
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| emilis gasiūnas Lithuanian footballer, LT |
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