Zivia Lubetkin (Polish: Cywia Lubetkin, IPA: [ˈt͡sɨvja luˈbɛtkʲin], Hebrew: צביה לובטקין, nom de guerre: Celina; 9 November 1914 – 11 July 1978) was one of the leaders of the Jewish underground in Nazi-occupied Warsaw and the only woman on the High Command of the resistance group Żydowska Organizacja Bojowa (ŻOB).

Zivia Lubetkin was born in Byteń in the Grodno Governorate of the Russian Empire (present-day Belarus).

During her years of underground activities, the name "Cywia" became the code word for Poland in letters sent by various resistance groups both within and outside of the Warsaw Ghetto.

[1] Though the Jewish forces would be devastated by the Germans, Lubetkin and several others survived by taking refuge in a hospital that was willing to hide them.

[2] Following the Second World War, Lubetkin was active in the Holocaust survivors community in Europe, and helped organize the Bricha, an organization staffed by operatives who helped Eastern and Central European Jews cross borders en route to Mandate Palestine by illegal immigration channels.