The Judaean Desert or Judean Desert (Hebrew: מִדְבַּר יְהוּדָה, romanized: Midbar Yehuda, Arabic: برية الخليل, romanized: Bariyat al-Khalil) is a desert in the West Bank and Israel that stretches east of the ridge of the Judaean Mountains and in their rain shadow, so east of Jerusalem, and descends to the Dead Sea.
The Judaean Desert has historically functioned as a place of refuge for rebels and displaced populations. According to the Hebrew Bible, David took shelter there while fleeing from King Saul. The Hasmonean rulers of Judaea, and their successor, Herod the Great, built several monumental fortresses in the region, including Herodium, Hyrcania, and Masada. In the period of the Jewish–Roman Wars, the desert became a key theater of conflict, with Roman forces besieging major strongholds. Caves in the area, such as the Cave of Letters and the Cave of Horrors, later served as hiding places for Jewish refugees, preserving personal documents, religious texts, skeletons, weapons, clothing, and household items—thanks to the region's arid climate. The desert also attracted religious sects, including the classical-era Jewish ascetics of Qumran (likely Essenes) and Byzantine-era Christian monks who practiced spiritual isolation in local lavras.
