Shlomo Kaplansky (Hebrew: שלמה קפלנסקי; born 7 March 1884 in Białystok - died 7 December 1950 in Haifa)[1] was a Labour Zionist politician, who served as the secretary of the World Union of Poalei Zion.

[5] He was profoundly shaken by the First World War which led to his opposition to notions of armed conflict in Palestine and he hoped for the realization of Zionism by peaceful means.

The office was in rooms in Petticoat Lane with Moshe Sharett working part-time translating Yiddish into English.

[18] In 1927, Ben-Gurion called for his resignation as the Ahdut HaAvoda representative on the Zionist Executive over the way relief was being distributed to unemployed Jews.

[19] During the 1928 discussions between Hapoel Hatzair and Ahdut HaAvoda which led to the formation of Mapai he threatened to resign because the manifesto was not socialist enough.

[20] In 1929, Kaplansky returned to the Zionist Executive and was a member of the delegation from Palestine to the Jewish Labour Congress held in Berlin, 27 September 1929.

[24] The 21st Zionist Congress held in Geneva, August 1939, appointed Kaplansky as head of a committee of enquiry into Arab-Jewish relations which reported to a conference convened in Palestine by Chaim Weizmann in 1945.