All around the world, Евстахий (Евстахий 
, Yevstakhiy 
, Evstahij 
) is a rare masculine first name. The first name Евстахий is characteristic of Kazakhstan, where it is a rare male name, and Russia, where it is a very rare male name. Much less frequently, Евстахий is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Евстахий | Kazakhstan, Ukraine, Russia |
| Yevstakhiy | Poland, United States, Ukraine |
| Evstahij | Slovenia |
Efstathios, Eustac, Eustacchio, Eustace, Eustach, Eustache, Eustachio, Eustachy, Eustacio, Eustacius, Eustacjusz, Eustahije, Eustaqui, Eustaquio, Eustasio, Eustasius, Eustathios, Eustazio, Eustazy, Eustațiu, Eustácio, Eustáquio, Evstafy, Evstahiy, Ostap, Stathis, Ευστάθιος, Στάθης, Астафий, Евстатий, Евстафий, Остап, Остафий, Стафей, Эсташ, Юстас, and Євстафій
| гоцко, евстахий владимирович UA (b. 1930) |
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| романюк евстахий владимирович UA (b. 1952) |
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