1921 in Mandatory Palestine

Events in the year 1921 in the British Mandate of Palestine.

Incumbents

 * High Commissioner – Sir Herbert Louis Samuel
 * Emir of Transjordan – Abdullah I bin al-Hussein from 11 April
 * Prime Minister of Transjordan – Rashid Tali’a from 11 April until 15 August; Mazhar Raslan

Events

 * 12 March – Start of Cairo Conference which agrees that the administration of Transjordan should be separated from that of Palestine.
 * 11 April – The establishment of the Emirate of Transjordan, which continues to remain part of the British Mandate of Palestine.
 * 1 May–7 May – Jaffa riots: Riots in Jaffa result in the death of 47 Jews (including the author Yosef Haim Brenner) and 48 Arabs.
 * 25 June – Fourth Palestine Arab Congress held in Jerusalem.
 * October – The Haycraft Commission of Inquiry publishes its findings on the Jaffa Riots of the previous year.

Unknown dates

 * The founding of the Hebrew Writers Association in the Land of Israel by Hayim Nahman Bialik.
 * The founding of the kibbutz Tel Yosef by members of Gdud HaAvoda, named after Joseph Trumpeldor.
 * The founding of the kibbutz Ein Harod by pioneers of the Third Aliyah.
 * The founding of the moshav Nahalal by pioneers of the Second Aliyah and Third Aliyah.
 * The founding of the moshava Ramat Gan.

Notable births

 * 6 January – Haim Corfu, Israeli politician (died 2015)
 * 16 January – Shmuel Toledano, Israeli politician and Mossad officer (died 2022)
 * 17 January – Dan Tolkowsky, Israeli military officer, commander of the Israeli Air Force, and venture capitalist
 * 17 January – Modi Alon, Israeli fighter pilot who commanded Israel's first fighter squadron, scored the first aerial victory of the Israeli Air Force (died 1948)
 * 17 March – Meir Amit, Israeli politician, general, and intelligence officer (died 2009)
 * 18 March – Joseph Tabenkin, Israeli military commander (died 1987)
 * 9 April – Yitzhak Navon, Fifth President of Israel (died 2015)
 * 26 August – Shimshon Amitsur, Israeli mathematician (died 1994)
 * 15 September – Moshe Shamir, Israeli author, playwright, opinion writer, and public figure (died 2004).
 * 21 September – Yehoshafat Harkabi, Israeli military intelligence officer and Professor of International Relations (died 1994).
 * 18 November – Baruch Ben Haim, Sephardic rabbi, Chief Rabbi of the Syrian Jewish community in Brooklyn for 55 years (died 2005).
 * 2 October – Yisrael Peled, Israeli politician, second Mayor of Ramat Gan (died 2016).
 * Full date unknown
 * Amos Hakham, Israeli Bible scholar (died 2012).

Notable deaths

 * 2 May – Yosef Haim Brenner (born 1881), Russian-born Palestinian Jew. Hebrew-language author, one of the pioneers of modern Hebrew literature
 * 5 May – Avshalom Gissin (born 1896), Zionist activist and Ottoman Army veteran killed defending Petah Tikva during the 1921 Palestine riots