Mario Javier Sabán (Buenos Aires, 1966), is an Argentinian theologian of Sephardi origin.

Mario Javier Sabán was born on 12 February 1966. He has a B.L. by University of Buenos Aires. His father was a Turkish Jew who had immigrated in Argentina.^[1]

Sabán began his historical investigations about the Jewish origins of the Argentina's traditional families in 1987. His first work, Converted Jews (1990), became a best-seller. In 2002, he migrated to Spain, where he published his book The Judaism of Saint Paul (2003).

In June 2007 he founded the organization Tarbut Sefarad, over which he presides. In March 2008 he obtained a doctorate in Philosophy from the Complutense University of Madrid. In June of the same year he published his doctoral thesis entitled Rambam, the genius of Moses Maimonides, based on his deep study of the Guide for the Perplexed. In September 2008 he published his eleventh work, The Judaism of Jesus, which is an extensive work dedicated to the teachings of Jesus and their natural relation with Judaism. None of Saban's books have been translated into English. Although one is advertised for sale with the title ″The Jewish Roots of Christianity,″ it is actually in Spanish.

• Judíos conversos (1990).
• Los hebreos nuestros hermanos mayores or Judíos conversos II (1991).
• Los marranos y la economía en el Rio de la Plata or Judíos conversos III (1992).
• Mil preguntas y respuestas sobre el judaísmo español y portugués (1993).
• Las raíces judías del cristianismo (1994).
• El judaísmo de San Pablo (La matriz judía del cristianismo I, 2003).
• El sábado hebreo en el cristianismo (La matriz judía del cristianismo II, 2004).
• La matriz intelectual del judaísmo y la génesis de Europa (2005).
• La cronología del pensamiento judío (2007).
• Rambam, el genio de Maimónides (Doctoral thesis, 2008).
• El judaísmo de Jesús (2008).
• La cábala. La psicología del misticismo judío (Doctoral thesis, 2016).

• The Guide for the Perplexed
• Jesus
• Saint Paul

• Mario Sabán's official page
• Tarbut Sefarad home page
• Amazon.com