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Globally, Kosteckij (Kosteckij
, Костецкий
) is an extremely rare unknown gender first name. Much more prevalently, Kosteckij is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kosteckij | Lithuania, Poland |
| Костецкий | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
Kostecki, Kostetsky, Kostezki, and Костецький