Adullam (Hebrew: עֲדֻלָּם) is an ancient ruin, built upon a hilltop overlooking the Elah Valley, south of Bet Shemesh in Israel. In the late 19th century, the town was still in ruins, and called by the Arabic name, `Eîd el Mieh. The hilltop ruin is also known by the name Khurbet esh-Sheikh Madkour, named after Madkour, one of the sons of the Sultan Beder, for whom is built a shrine (wely) and formerly called by its inhabitants Wely Madkour. The hilltop is mostly flat, with cisterns carved into the rock. The remains of stone structures which once stood there can still be seen. Sedimentary layers of ruins from the old Canaanite and Israelite eras, mostly potsherds, are noticeable everywhere, although olive groves now grow atop of this hill, enclosed within stone hedges. The villages of Aderet, Neve Michael/Roglit, and Aviezer are located nearby. Access to the site may be obtained by passing through the cooperative small holder's agricultural villages (Moshavim) of Aderet or Neve Michael (known also as Roglit). The ruin lies about 2 kilometers south of Moshav Neve Michael.
The "Adullam" mentioned in the Hebrew Bible is usually thought to be identical with Tell Sheikh Madkhur, that is, the archaeological ruin referred to in this article as "Adullam."
Adullam was one of the royal cities of the Canaanites referred to in the Hebrew Bible. Although listed in Joshua as being a city in the plain, it is actually partly in the hill country, partly in the plain. It stood near the highway which later became the Roman road in the Valley of Elah, the scene of David's victory over Goliath. It was here that Judah, the son of Jacob (Israel), came when he left his father and brothers in Migdal Eder, where he befriended a certain Hirah, an Adullamite, and where he met his first wife (unnamed in Genesis), the daughter of Shua. It was one of the towns which Rehoboam fortified against Egypt.Micah calls it "the glory of Israel."