Surname Марцинкявичюс (Марцинкявичюс 
, Martsinkyavichyus 
) , around the globe, is a very rare cognomen. The cognomen Марцинкявичюс is habitual in Belarus, where it is a very rare surname, Kazakhstan, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Марцинкявичюс | Russia, Kazakhstan |
| Martsinkyavichyus | Belarus |
| марцинкявичюс миколас LT (b. 1892) |
|
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| марцинкявичюс, альгимантас йонас LT (b. 1921) |
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