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Cognomen Sergiejus (Sergiejus
) , globally, is an extremely rare surname. Much more prevalently, Sergiejus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sergiejus | Lithuania, United States, United Kingdom |
Kolinas, Popovas, Prochoro, Suvalovas, Gadliauskas, Prochorovas, and Polovnikovas