Wadi al-Taym, also transliterated as Wadi el-Taym is a wadi (dry river) that forms a large fertile valley in southern Lebanon, near Hasbaya on the western slopes of Mount Hermon.

It adjoins the Beqaa valley running north to south towards the Jordan valley where it meets the northwest corner of Lake Huleh. Watered by the Hasbani river, the low hills of Wadi al-Taym are covered with rows of silver-green olive trees with the population in the area being predominantly Druze.

It was given its name after settlement by the Arabic Al-Taym tribe. Dahhak ibn Jandal was titled emir of the Wadi al-Taym in the 12th century.