UWilliam Henry Blum (/blʌm/; wazalwa ngomhlaka 6 ku Mashi, 1933 washona ngomhlaka 9 – Disemba 9, 2018) ubengumbhali wezincwadi, usomlandu, kanye nomgxeki wenqubo yomgomo wase-United States foreign policy. Ubehlala eWashington, DC. UBlum wazalelwa eBrooklyn, eNew York City, ezalwa nguRuth (née Katz) kanye no-Isidore Blum, abazali bakhe babengabantu abangamaJuda abafika bebuya ePoland (Polish Jewish immigrants). Ubaba wakhe wayesebenza ngomshini. Yena wayeqede imfundo yase-Erasmus Hall High School kanti wathola iziqu ze-accountancy ngo 1955 esikhungweni se-City College School of Business and Civic Administration, kanti kamuva lekholishi yaziwa ngokuthi yi-Baruch College of the City University of New York. Waqala ukusebenza njenge-computer programmer kwa-IBM, ngemuva kwalokho wathathwa ngumyango kahulumeni i-State Department. Wayenogqozi lokuba yisikhule esisebenzela ezangaphandle njenge-foreign service officer ngokuchaza kwakhe ukuthi, "abambe iqhaza kwimpi nombhidlango wokulwa nobuKhomanisi we-anti-Communist crusade". UBlum waqala ukukhathazeka ngempi yemMelika yokulwa nezwe laseVietnam eyaziwa ngokuthi yi-Vietnam War kanti wagcina ngokuyeka esikhundleni sokusebenzela umbuso ngo 1967.