Lily Braun (2 July 1865 – 8 August 1916), born Amalie von Kretschmann, was a German feminist writer and politician of the Social Democratic Party (SPD).

Raised according to the Prussian virtues of order and discipline from her father's military career, Braun nevertheless developed a direct and open personality, encouraged in particular by her grandmother Jenny von Gustedt [de].

[citation needed] In 1893, Braun married to Georg von Gizycki [de], a professor of philosophy at the Frederick William University in Berlin, who was associated with the Social Democratic Party without however being a member.

[citation needed] Like her fellow political activist Helene Stöcker, Braun was strongly influenced by Friedrich Nietzsche; she and her husband wanted the SPD to focus on the development of personality and individuality.

[citation needed] Deeply concerned about the fate of her son, Braun died in Zehlendorf (today part of Berlin) from the consequences of a stroke at the age of 51, in the midst of World War I.