Beba Idelson (Hebrew: בבה אידלסון, 14 October 1895 – 5 December 1975) was a Zionist activist and Israeli politician.

[1] When she was eight, her mother died giving birth to her thirteenth child and at the age of fourteen she lost her father, Yitzhak.

In 1913, shaken by the Beilis trial, she became interested in Zionism and in 1915 she joined the “Youth of Zion” (later to be merged into Hashomer Hatzair).

[3] Between 1924 and 1926, Idelson was active in the World Union of Socialist Zionists in Europe, and in 1926 they immigrated to the British Mandate of Palestine.

[4] She was a delegate to the Jewish National Council and contacted many socialist leaders, arguably including Leon Trotsky in Mexico in October 1937.