Luise Catharina Amalie Zietz (née: Körner) (1865–1922) was a German socialist and feminist.

[2] She also helped bring the socialist women's movement into the Social Democratic Party of Germany.

[1] In 1908, the same year the government legalized women's participation in politics, she became the first woman appointed to the executive committee of the Social Democratic Party of Germany.

[1][3] She later nominated Marie Juchacz for a paid position by the party as the Cologne women's secretary in what was then the Upper Rhine province.

[3] Zietz and Friedrich Ebert, Hugo Haase, Hermann Molkenbuhr and Hermann Müller attended the Vienna Socialist Conference of 1915 representing the Social Democratic Party of Germany.