Qishlah or AL Qishlah (Arabic:قصر القشلة) is a Palace located in the center of Ha'il city, Saudi Arabia. Made in the 1940s during the principality of prince Abdul-Aziz bin Musa'ad Al Saud of Ha'il province. It is a two-floor mud palace, 142.8x141.2 meters, its walls are 8.5m high, and it has eight watching-towers along with the wall with two main gates, eastern and western gates.
The purpose of building it, was to made it a center of the army troops arrived there. Then, it turned into a prison until the end of the principality of bin Musa'ad, which then turned to a historical building by the government.
Qishlah comes from the Turkish word for fort or barracks (Kışla).