Marie Zettler (13 November 1885 – 5 February 1950) was a German politician and commentator/journalist.
A member of the Catholic-centrist Bavarian People's Party ("Bayerische Volkspartei" / BVP), and with women now permitted to stand for election, in 1919 she became one of a number of women elected to what became known as the Weimar National Assembly, mandated to draw up a republican constitution for a newly post-imperial Germany.
She also served, for more than forty years, as Secretary for Bavaria of the German Catholic Women's League ("Katholischer Deutscher Frauenbund" / KDFB).