Cognomen Bett (بت 
, Bett 
, בט 
) , across the world, is a common surname. The cognomen Bett is habitual in Kenya, where it is quite a common surname, Sudan, where it is quite a rare surname, and Iceland. In absolute terms, the name is most common in Kenya, Sudan, and Brazil. Likewise, Bett is the forename as well as the last name.
| francis arnot blackader bett New Zealand physician and collector and creator of the Bett Collection (1873–1957), NZ (b. 1873) |
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| henry bett (b. 1876) |
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| hugo bett holocaust victim, b. 1896-03-19, AT (b. 1896) |
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| hans bett holocaust victim, b. 1898-05-09, AT (b. 1898) |
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franklin bett Kenyan politician, KE (b. 1953) |
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| elisabeth bett holocaust victim, b. 1904-09-01, AT (b. 1904) |
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| walter reginald bett (b. 1903) |
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| elva bett New Zealand art gallery owner (1918 - 1991), NZ (b. 1918) |
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| fred bett association football player (1920-2005), GB (b. 1920) |
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| david charles gore bett b.8 May 1921 d.5 February 1977 (b. 1921) |
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| lilly bett holocaust victim, b. 1925-02-14, AT (b. 1925) |
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emmanuel bett Kenyan long-distance runner, KE (b. 1985) |
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| michael bett English business executive, GB (b. 1935) |
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nicholas bett Kenyan athlete, KE (b. 1990) |
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leonard bett Kenyan athletics competitor, KE |
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