Jabal Amil (Arabic: جبل عامل, romanized: Jabal ʿĀmil), also spelled Jabal Amel and historically known as Jabal Amila, is a cultural and geographic region in Southern Lebanon largely associated with its long-established, predominantly Twelver Shia Muslim inhabitants. Its precise boundaries vary, but it is generally defined as the mostly highland region on either side of the Litani River, between the Mediterranean Sea in the west and the Wadi al-Taym, Beqaa and Hula valleys in the east.

According to local legend, the Shia community in Jabal Amil is one of the oldest in history, second only to the Shia community of Medina, and were converted to Islam by Abu Dharr al-Ghifari, a companion of the Islamic prophet Muhammad and an early supporter of Ali. Although there is frequent occurrence of this account in many religious sources, it is largely dismissed in academia, and historical sources suggest Shia Islam largely developed in Jabal Amil between the mid-8th to 10th centuries (750–900).