Cognomen Gust (Gust 
, Gustus 
, Густ 
) , globally, is quite a common last name. The family name Gust is characteristic of Germany, where it is quite a rare surname, Luxembourg, and the United States. Measured by absolute frequency, it most frequently occurs in the United States, Germany, and Canada. Also, Gust is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gust | Germany, Poland, Belgium, United States, Egypt |
| Gustus | Germany, Australia, Indonesia, Canada, United States |
| Густ, Гаст | Kazakhstan, Ukraine, Russia |
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gust aakula Finnish journalist (1884-1976), FI (b. 1884) |
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gust alonen SE (b. 1877) |
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gust de muynck BE (b. 1897) |
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gust goettl inventor, entrepreneur, businessman (b. 1910) |
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gust romijn Dutch visual artist (1922-2010), NL (b. 1922) |
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| gust hagberg Swedish immigrant (b. 1873) |
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| big gust (b. 1872) |
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| gust wauters Belgian architect, BE (b. 1883) |
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wolfgang gust German historian, DE (b. 1935) |
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| ernie gust American baseball player, US (b. 1888) |
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| gust m. dokken American politician, US (b. 1888) |
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| gust kulche Dutch sculptor, NL (b. 1894) |
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| gust van werveke Luxembourgish journalist, LU (b. 1896) |
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| gust stemmler American politician, US (b. 1899) |
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| waldemar gust RO (b. 1892) |
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