Feingold is a surname. Notable people with the surname include:
Benjamin Feingold (1899–1982), American pediatric allergist Feingold diet, named after Benjamin Feingold David Sidney Feingold (1922–2019), American biochemist Eleanor Feingold, American statistical geneticist Ilay Feingold (born 2004), Israeli footballer Kenneth Feingold (born 1952), American artist Marko Feingold (1913–2019), Austrian Holocaust survivor Michael Feingold (1945–2022), American critic, translator, lyricist, and playwright Russ Feingold (born 1953), American politician Sharon Feingold, American voice actress