Moritz Güdemann (Hebrew: משה גידמן; 19 February 1835 – 5 August 1918) was an Austrian rabbi and historian.

Theodor Herzl tried to persuade Güdemann – as the Chief Rabbi of Viennese Jewry – to take a Zionist side and submitted his pamphlet Der Judenstaat.

[2] Güdemann's initially positive association with Herzl's project changed after reading his manuscript, which he opposed on theological grounds.

Herzl's Zionism was influenced by the state theories of Machiavelli and Hegel, the nation-state thinking of the 19th century, far more than by the religious traditions of Judaism.

[4] Güdemann wrote on the history of Jewish education and culture, and was associated with the Wissenschaft des Judentums movement.