Family name Brat (Brat 
, Bratt 
, ברט 
) , around the world, is a common cognomen. The last name Brat is habitual in Sweden, where it is quite a common surname, Serbia, and Bosnia and Herzegovina, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in the United States, Sweden, and the United Kingdom. Very seldom, Brat is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Brat | Sweden, India, United States, United Kingdom, Serbia |
| Bratt | Sweden, France, India, United States, United Kingdom |
| ברט | Israel |
| Bratchet | United States |
| khaim brat Victim of the Holocaust, UA (b. 1900) |
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| adolf brat (b. 1891) |
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| itzhak brat Polish Jewish journalist and writer, in 1951 moved to Israel, PL (b. 1910) |
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dave brat American economist and professor at Randolph–Macon College, US (b. 1964) |
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da brat American rapper, US (b. 1974) |
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jala brat Bosnian-Herzegovinian rapper, BA (b. 1986) |
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| jeany brat French politician, FR (b. 1954) |
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| roman brat Slovak writer, SK (b. 1957) |
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| eric brat (b. 1964) |
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| hugues brat researcher (ORCID 0000-0001-9708-5511) |
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| kristian brat researcher (ORCID 0000-0003-1674-228X) |
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| gabriel a brat researcher |
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| jan brat |
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| jean brat BE |
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| brat ljatifi |
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