Family name Karnatz (Karnatz 
) , across the world, is quite a rare surname. The cognomen Karnatz is characteristic of Germany, where it is a rare surname, Sweden, and the United States, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Karnatz | Canada, Brazil, Sweden, United States, Germany |
|
bernhard karnatz DE (b. 1882) |
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| ludwig karnatz DE (b. 1879) |
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| albert karnatz American racing driver, US (b. 1905) |
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| joachim karnatz German politician (1921-1977), DE (b. 1921) |
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| ulrich karnatz East German rower, DE (b. 1952) |
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| al karnatz college basketball player (1956–1957) Valparaiso |
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| richard karnatz printer |
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| tina karnatz researcher (ORCID 0000-0003-3484-0422) |
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| philipp karnatz German rower, DE (b. 1987) |
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| sebastian karnatz DE (b. 1981) |
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