Beihan (Arabic: بيحان), also known as Bayhan al Qisab (Arabic: بيحان القصاب), is a town in western Yemen. The town had 13,234 inhabitants as of 2004. It was formerly the capital city of Emirate of Beihan, and today is the capital of Bayhan District in the Shabwah Governorate.
Geographically, Beihan is a valley connected between al-Baidha in the north-west, Ma'rib in the east and Ataq in the south. It is a fertile valley irrigated by water streams fall from the northern mountains as well as from the dug wells. The main cultivated crops are dates, cereals and citrus and people depend on livestock to a large extent to survive. Nonetheless, people increasingly adopt trade and exchange/commerce, in addition to incorporate in government business.
Bayhan valley historically had several main groups. The Musabein Tribe living in the north was dominated by the Alsaleh (Ahmed Saif tribe) and the Alfatima (Naji Alawi tribe). These two factions were in consistent feuds.
The South of the valley was dominated by the Balharith Tribe who were also continuously fighting one another as to who was their paramount sheik and like the Masabin also split into 2 main branches.