All over the world, Arnas (Arnas 
, อานัส , ارنوس 
) is quite a rare predominantly male, but very infrequently female first name. The forename Arnas is characteristic of Lithuania, where it is quite a common male name, Thailand, where it is quite a rare predominantly male, but very seldom female name, and Ireland, where it is a rare male name. In absolute terms, it most frequently occurs in Thailand, Lithuania, and Indonesia. Much less frequently, Arnas is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Arnas | Spain, Brazil, Lithuania, Indonesia, Thailand |
| อานัส | Thailand |
| ارنوس | Iraq |
| Арнас | Kazakhstan, Russia, Kyrgyzstan, United States, Ukraine |
| arnas funkas RU (b. 1898) |
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| arnas rosenas Lithuanian actor, LT (b. 1933) |
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arnas neverauskas Lithuanian jurist and civil servant, LT |
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| arnas ališauskas Lithuanian poet, LT (b. 1970) |
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| arnas balsevičius Lithuanian association football player, LT (b. 1975) |
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| arnas kazlauskas Lithuanian basketball player, LT (b. 1976) |
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| arnas lucassen researcher ORCID ID = 0000-0003-2967-2030 |
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| arnas rakauskas researcher |
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| arnas majumder civil engineer |
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| arnas labuckas Lithuanian basketball player, LT (b. 1987) |
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| arnas šidiškis Lithuanian weightlifter, LT (b. 1990) |
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| arnas bakavicius |
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| arnas borodinas |
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| arnas butkevičius Lithuanian basketball player, LT (b. 1992) |
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| arnas ribokas Lithuanian association football player, LT (b. 1993) |
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