Besor (Hebrew: נחל הבשור‎, Nahal HaBesor) is a wadi in southern Israel. The stream begins at Mount Boker (near Sde Boker), and spills into the Mediterranean Sea near Al-Zahra in the Gaza Strip. In the Old Testament Besor was a ravine or brook in the extreme south-west of Judah, where 200 of David's men stayed behind because they were faint, while the other 400 pursued the Amalekites (1 Samuel 30:9–10, 30:21).[1]

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