Käte Duncker (born Käte Döll: 23 May 1871- 2 May 1953) was a German political and feminist activist who became a politician in the Social Democratic Party of Germany and then the Communist Party of Germany.On 15 October 2013 Germany's "Die Linke" ("The Left") party renamed its meeting room at the Regional Parliament in Thuringia (where she sat as a Communist Party member in the 1920s) the Käte Duncker room ("Käte-Duncker-Saal").