Surname Vaitkus (Вайткус 
, Vaitkus 
) , globally, is quite a rare cognomen. The last name Vaitkus is characteristic of Northern Europe, particularly Lithuania, where it is quite a common surname, Latvia, where it is quite a rare surname, and Ireland, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Lithuania, the United States, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Вайткус | Kazakhstan, Russia, Lithuania, Kyrgyzstan, Ukraine |
| Vaitkus | Latvia, Lithuania, Australia, United States, United Kingdom |
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feliksas vaitkus American aviator, US (b. 1907) |
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| stasys vaitkus Lithuanian photographer, LT (b. 1907) |
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rimantas vaitkus First Deputy Chancellor of Lithuania, LT (b. 1957) |
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| jonas vaitkus Lithuanian Righteous Among the Nations, LT (b. 1910) |
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tomas vaitkus Lithuanian cyclist, LT (b. 1982) |
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arvydas vaitkus LT |
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| edvardas antanas vaitkus LT (b. 1937) |
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| algirdas vaitkus Lithuanian association football player, LT (b. 1948) |
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| vytautas petras vaitkus LT (b. 1940) |
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| juozas vidmantis vaitkus LT (b. 1941) |
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| vytautas vaitkus LT (b. 1943) |
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| steven vaitkus DE (b. 1955) |
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| linas vaitkus Lithuanian alpine skier, LT (b. 1973) |
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| ramunas vaitkus LT (b. 1968) |
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| jesse a vaitkus researcher |
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