Cognomen Hass (Hass 
, 哈斯 
, ハス 
, along with others...) , worldwide, is a common family name. The last name Hass is habitual in Denmark, where it is quite a rare surname, Germany, and Namibia. Not in comparison with a country's population, it is commonest in the United States, Germany, and Pakistan. Very seldom, Hass is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Hass | Germany, United States, Poland, Pakistan, Brazil |
| 哈斯 | China |
| ハス | Japan |
| Хасс | Kazakhstan, Russia, Ukraine, Belarus |
| Гасс | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| johann hass (b. 1629) |
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johann adolph hass Clavichord maker, DE (b. 1713) |
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| hieronymus albrecht hass harpsichord maker, DE (b. 1689) |
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| joachim bruun hass DK (b. 1713) |
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| ludvig daniel hass (b. 1808) |
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| siegfried hass Born 17 October 1848, in Kallundborg; died 29 January 1908, in Copenhagen. Danish, Painter. Rustic scenes, waterscapes, fishing scenes., DK (b. 1848) |
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| fritz hass German illustrator and painter, DE (b. 1864) |
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hans hass Austrian biologist and underwater diving pioneer, AT (b. 1919) |
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| johannes hass German politician and trade unionist (1873–1945), DE (b. 1873) |
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| hedwig hass holocaust victim, b. 1873-11-17, DE (b. 1873) |
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| h. edvard hass DK (b. 1866) |
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lotte hass Austrian underwater diver and model; wife of Hans Hass (1928-2015), AT (b. 1928) |
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| frode hass (b. 1871) |
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| gustav hass PL (b. 1872) |
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| ernst hass (b. 1873) |
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