Alexandre Romanovich Prigogine (12 April 1913, Moscow - 7 May 1991, Brussels) was a Belgian mineralogist and ornithologist of Russian-Jewish origin.
Born into a Jewish family in Moscow, his father Roman (Ruvim Abramovich) Prigogine was a chemical engineer and his mother Julia Vichman, a pianist.
His younger brother Ilya Prigogine later won a Nobel Prize in chemistry.
In 1921 the family left Russia and travelled through Lithuania and Germany to settle in Belgium in 1929.
Henri Schouteden convinced him in 1946 to take an interest in birds and to collect specimens in the east of the Belgian Congo.