Last name Vaina (Vaina 
, Bayna 
, Война 
) , globally, is quite a common family name. The family name Vaina is characteristic of Lithuania, where it is quite a rare surname, Estonia, and Greece. Measured by absolute frequency, it is commonest in India, Ukraine, and Philippines. Also, Vaina is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vaina | Italy, India, Greece, Brazil, Democratic Republic of the Congo |
| Bayna | Turkey, Morocco, Philippines, United States, India |
| Война | Kazakhstan, Russia, Belarus, Bulgaria, Ukraine |
| Ваина | Kazakhstan, Russia, Belarus |
| františek vaina CZ (b. 1840) |
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| vladimír záboj vaina CZ (b. 1876) |
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| vladimír vaina Czechoslovakian rower (b. 1909) |
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| józef vaina PL (b. 1916) |
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| lucia maria vaina researcher |
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| sophia vaina researcher |
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| stanislovas kazimieras vaina |
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| mykolas vaina |
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