dˈænjəl dʒˈeɪ. klˈeɪtmən bˈɔːɹn ɑːktˈoʊbɚ fˈoːɹ, nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi fˈoːɹ ɪz ɐn ɐmˈɛɹɪkən mˌæθɪmɐtˈɪʃən ænd pɹəfˈɛsɚɹ ʌv ɐplˈaɪd mˌæθɪmˈæɾɪks æɾ ˌɛmˌaɪtˈiː.
Daniel J. Kleitman (born October 4, 1934) is an American mathematician and professor of applied mathematics at MIT.