vˈɪktɚ mˈætviːvˌɪtʃ bˈʌtʃsteɪbɚ, bˈɔːɹn wˈʌn ˈeɪpɹəl nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi θɹˈiː, tæʃkˈɛnt, sˈoʊviət jˈuːniən ɪz ɐ sˈoʊviət ænd ɹˈʌʃən mˌæθɪmɐtˈɪʃən nˈoʊn fɔːɹ hɪz wˈɜːk ˌɔn ˌældʒɪbɹˈeɪɪk təpˈɑːlədʒi, hˈɑːməɾəpi θˈiəɹi, ænd mˌæθɪmˈæɾɪkəl fˈɪzɪks.
Victor Matveevich Buchstaber (, born 1 April 1943, Tashkent, Soviet Union) is a Soviet and Russian mathematician known for his work on algebraic topology, homotopy theory, and mathematical physics.