Cognomen Kupčinskas (Kupčinskas 
) , around the world, is a very rare family name. The family name Kupčinskas is habitual in Northern Europe, particularly Lithuania, where it is quite a rare surname.
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rytas kupčinskas Lithuanian politician, LT (b. 1949) |
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| juozas kupčinskas Lithuanian politician and university teacher (1906-1971), LT (b. 1906) |
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andrius kupčinskas Lithuanian politician, LT (b. 1975) |
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| vincas kupčinskas (b. 1951) |
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