Nahal Sorek (Hebrew: נחל שורק‎, lit. Brook of Sorek), also Soreq, is one of the largest, most important drainage basins in the Judean Hills. It is mentioned in the Book of Judges 16:4 of the Bible as the border between the ancient Philistines and the Tribe of Dan of the ancient Israelites. It is known in Arabic as Wadi Surar.