The Beqaa Valley (Arabic: وادي البقاع / ALA-LC: Wādī al-Biqā‘; Lebanese: [bʔaːʕ]; also transliterated as Bekaa, Biqâ or Becaa) is a fertile valley in east Lebanon. For the Romans, the Beqaa Valley was a major agricultural source, and today it remains Lebanon’s most important farming region. Industry also flourishes in Bekaa, especially that related to agriculture.

The Beqaa is a fertile valley in Lebanon, located about 30 km (19 mi) east of Beirut. The valley is situated between the Mount Lebanon to the west and the Anti-Lebanon Mountains to the east. It forms the northeasternmost extension of the Jordan Rift Valley, which stretches from Syria to the Red Sea. Beqaa Valley is about 120 km (about 75 miles) in length and has an average width of about 16 km (about 10 miles). It has a Mediterranean climate of wet, often snowy winters and dry, warm summers. The region receives limited rainfall, particularly in the north, because Mount Lebanon creates a rain shadow that blocks precipitation coming from the sea. The northern section has an average annual rainfall of 230 mm (9 inches), compared to 610 mm (24 inches) in the central valley. Two rivers originate in the valley: the Orontes (Asi), which flows north into Syria and Turkey, and the Litani, which flows south and then west to the Mediterranean Sea.