Behbahan, a walled town of Persia in the province of Fars, pleasantly situated in the midst of a highly cultivated plain, 128 m. W.N.W. of Shiraz and 3 m. from the left bank of the river Tab, here called Kurdistan river. It is the capital of the Kuhgilu-Behbahan sub-province of Fars and has a population of about 10,000. The walls are about 3 m. in circumference and a Narinj Kalah (citadel) stands in the south-east corner. At a short distance north-west of the city are the ruins of Arrajan, the old capital of the province.