All over the world, Mečys (Mečys 
) is a very rare boy's given name. The forename Mečys is characteristic of Northern Europe, particularly Lithuania, where it is a rare male name.
| VARIANT | COUNTRY |
|---|---|
| Mečys | Lithuania |
Mecislaus, Mecislovas, Mecys, Mečislovas, Mieczyslaw, Mieczysław, Mieszko, Мечислав, Мечыслаў, Мешко, and Мєчислав
| mečys markauskas LT (b. 1890) |
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| mečys chadaravičius Lithuanian actor, LT (b. 1902) |
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| mečys kareiva (b. 1901) |
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| mečys barkauskas LT (b. 1902) |
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| mečys rakauskas LT (b. 1938) |
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| mečys laurinkus Lithuanian politician, LT (b. 1951) |
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