Feigenbaum
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Feigenbaum is a German surname meaning "fig tree". Notable people with the surname include:
- Armand V. Feigenbaum (1920–2014), American quality control expert
 - B. J. Feigenbaum (1900–1984), American legislator and lawyer
 - Clive Feigenbaum, stamp dealer
 - Edward Feigenbaum (born 1936), American computer scientist known as the "father of expert systems"
 - Eran Feigenbaum (born 1974), Israeli information security expert and mentalist
 - Joan Feigenbaum (born 1958), American computer scientist
 - Juliusz Feigenbaum (1872–1944), father of Polish record industry, founder of the company Syrena Record
 - Mitchell Feigenbaum (1944–2019), American mathematical physicist
 - William M. Feigenbaum (1886–1949), American politician from New York
 - Yehoshua Feigenbaum (born 1947), Israeli footballer