|Name meaning||The Monastery of Aban|
|Date of depopulation||October 19–20, 1948|
|Cause(s) of depopulation||Military assault by Yishuv forces|
|Current localities||Tzor'a, Machseya, Beyt Shemesh, and Yish'i|
Dayr Aban (also spelled Deir Aban; Arabic: دير آبان) was a Palestinian Arab village in the Jerusalem Subdistrict, located on the lower slope of a high ridge that formed the western slope of a mountain, to the east of Beit Shemesh. It was formerly bordered by olive trees to the north, east, and west. The valley, Wadi en-Najil, ran north and south on the west-side of the village. It was depopulated during the 1948 Arab-Israeli War on October 19, 1948, under Operation Ha-Har. It was located 21 km west of Jerusalem. In pre-Roman and Roman times the settlement was referred to as Abenezer.
In 1596, Dayr Aban appeared in Ottoman tax registers as being in the Nahiya of Quds of the Liwa of Quds. It had a population of 23 Muslim households and 23 Christian households. It paid taxes on wheat, barley, olives, and goats or beehives.
In 1945, the village had a total population of 2,100. Dayr Abban had a mosque and a pipeline transporting water from 'Ayn Marjalayn, 5 km to the east. The village contains three khirbats: Khirbat Jinna'ir, Khirbat Haraza, and Khirbat al-Suyyag.
The prefix "Dayr" which appears in many village names is of Aramaic and Syriac-Aramaic origin, and has the connotation of "habitation," or "dwelling place," usually given to places where there was once a Christian population, or settlement of monks. In most cases, a monastery was formerly built there, and, throughout time, the settlement expanded. Dayr Aban would, therefore, literally mean, "the Monastery of Aban."
- Palmer, 1881, p.293
- Morris, 2004, p. xx, village #335. Also gives cause of depopulation.
- C.R. Conder, Notes from the Memoir, Palestine Exploration Quarterly, vol. 18, London 1876, p. 149; Conder & Kitchener, The Survey of Western Palestine, vol. iii (Judaea), London 1883, p. 24
- Hütteroth and Abdulfattah, 1977, p. 119
- Victor Guérin,Description Géographique, Historique et Archéologique de la Palestine (Judaea. Third Volume), Paris 1869, p. 323
- Yalqut Teiman, Yosef Tobi and Shalom Seri (editors), Tel-Aviv 2000, p. 158, s.v. מחסיה (Hebrew) ISBN 965-7121-03-5
- Al-Shabeshti, Diyārāt (Monasteries).
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- Barron, J. B., ed. (1923). Palestine: Report and General Abstracts of the Census of 1922. Government of Palestine.
- Conder, Claude Reignier; Kitchener, H. H. (1883). The Survey of Western Palestine: Memoirs of the Topography, Orography, Hydrography, and Archaeology. 3. London: Committee of the Palestine Exploration Fund. (p. 24)
- Dauphin, Claudine (1998). La Palestine byzantine, Peuplement et Populations. BAR International Series 726 (in French). III : Catalogue. Oxford: Archeopress. ISBN 0-860549-05-4. (p. 909)
- Guérin, Victor (1869). Description Géographique Historique et Archéologique de la Palestine (in French). 1: Judee, pt. 2. Paris: L'Imprimerie Nationale. (pp. 22-23)
- Hadawi, Sami (1970). Village Statistics of 1945: A Classification of Land and Area ownership in Palestine. Palestine Liberation Organization Research Centre.
- Hütteroth, Wolf-Dieter; Abdulfattah, Kamal (1977). Historical Geography of Palestine, Transjordan and Southern Syria in the Late 16th Century. Erlanger Geographische Arbeiten, Sonderband 5. Erlangen, Germany: Vorstand der Fränkischen Geographischen Gesellschaft. ISBN 3-920405-41-2.
- Khalidi, Walid (1992). All That Remains: The Palestinian Villages Occupied and Depopulated by Israel in 1948. Washington D.C.: Institute for Palestine Studies. ISBN 0-88728-224-5.
- Mills, E., ed. (1932). Census of Palestine 1931. Population of Villages, Towns and Administrative Areas. Jerusalem: Government of Palestine. (p. 19)
- Morris, Benny (2004). The Birth of the Palestinian Refugee Problem Revisited. Cambridge University Press. ISBN 978-0-521-00967-6.
- Palmer, E. H. (1881). The Survey of Western Palestine: Arabic and English Name Lists Collected During the Survey by Lieutenants Conder and Kitchener, R. E. Transliterated and Explained by E.H. Palmer. Committee of the Palestine Exploration Fund.