Bani Haiyyan (Arabic: بني حيان) is a municipality in the Marjayoun District in southern Lebanon.

He further noted: "All the houses are built of regular stones belonging to ancient buildings, and most of the doors have fine lintels.

"[2] In 1881, the PEF's Survey of Western Palestine (SWP) described it as: "A small village, built of stone, containing about fifty Metawileh, situated on the side of a hill and surrounded by figs, olives, and arable land.

The water supply is from about ten rock-cut cisterns in the village and a birket near.

"[3] In 2014 Muslims made up 99.49% of registered voters in Bani Haiyyan.