Cognomen Matjas (Matjas 
, Матяс 
) , in the world, is quite a rare surname. The cognomen Matjas is habitual in Belarus, where it is quite a rare surname, Slovenia, and Estonia. In absolute terms, it is the most numerous in Eastern Europe, particularly Belarus, Russia, and Ukraine. Very seldom, Matjas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Matjas | Germany, Estonia, Poland, Slovenia, Brazil |
| Матяс | Kazakhstan, Russia, Ukraine, Belarus |
| franciszek matjas Polish Righteous Among the Nations, PL (b. 1905) |
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| józefa matjas Polish Righteous Among the Nations, PL |
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| tanja matjas |
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