Family name Kamaitis (Kamaitis 
) , all over the world, is a rare cognomen. The surname Kamaitis is characteristic of Lithuania, where it is quite a rare surname, Canada, where it is a very rare surname, and the United Kingdom. Measured by absolute frequency, it is commonest in Lithuania, Canada, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Kamaitis | Canada, United States, United Kingdom, Lithuania |
| juozas kamaitis Lithuanian composer, LT (b. 1893) |
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| vidutis pranciškus kamaitis Lithuanian politician, LT (b. 1938) |
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| zenonas kamaitis LT (b. 1933) |
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| ramūnas kamaitis LT (b. 1938) |
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| dainius kamaitis Lithuanian diplomat, LT (b. 1965) |
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