Cognomen Trinkūnas (Trinkūnas 
) , around the world, is a very rare surname. The family name Trinkūnas is habitual in Northern Europe, particularly Lithuania, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Trinkūnas | Lithuania |
| dainius trinkūnas politician (1931-1996), LT (b. 1931) |
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| gytis trinkūnas Lithuanian pianist, LT (b. 1936) |
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| juozas trinkūnas Lithuanian Righteous Among the Nations, LT |
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