Cognomen Zach (Zach 
, ザック 
, זאק 
, along with others...) , throughout the world, is a common family name. The cognomen Zach is characteristic of Austria, where it is quite a common surname, Greece, and Czechia. In absolute terms, it is the most numerous in Austria, Germany, and Greece. More prevalently, Zach is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Zach | Poland, Greece, Austria, United States, Germany |
| ザック | Japan |
| זאק, זך | Israel |
| 扎克 | China |
| زاك | Saudi Arabia, Yemen, Syria, Algeria, Morocco |
| Зак | Kazakhstan, Russia, Israel, Belarus, Ukraine |
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klara zach Hungarian lady-in-waiting (b. 1301) |
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christophe von zach Roman Catholic bishop, AT (b. 1474) |
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| christian zach (1620-1668), AT (b. 1620) |
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jan zach Czech composer and organist, CZ (b. 1699) |
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| josef zach (b. 1692) |
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franz xaver von zach astronomer (1754-1832), LI (b. 1754) |
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| andreas zach Austrian architect (1736-1797), AT (b. 1736) |
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| andreas zach (b. 1737) |
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františek zach Czech general and warrior, CZ (b. 1807) |
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paul ritter von zach Austrian military personnel, AT (b. 1831) |
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jiří zach CZ (b. 1830) |
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adrian zach CZ (b. 1845) |
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| roman zach AT (b. 1807) |
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| franz zach zoologist (b. 1819) |
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| franz paul zach (1820-1881), CZ (b. 1820) |
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