Qishlah or Al-Qishlah (Arabic:قصر القشلة) is a Palace in the center of Ha'il city, Saudi Arabia. It was built in the 1940s as an artillery and weapons depot during the principality of prince Abdulaziz bin Musaad 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 watch-towers along with the walls with two main gates, east and west.

Qishlah comes from the Turkish word for fort or barracks (Kışla). The purpose of building it was to make it the central location for the army troops arriving there. Then it was a prison until the end of the principality of bin Musa'ad, when it was re-purposed as a historical building by the government.

Qishlah Fort was transformed into a heritage landmark in 1995.

• List of castles in Saudi Arabia

• Ishteeaque, Ellahi M. (2008). The Native Architecture of Saudi Arabia: Architecture and Identity. Riyadh Municipality. p. 228. ISBN 978-603-8014-02-8.

27°31′09″N 41°41′40″E / 27.51906°N 41.69442°E / 27.51906; 41.69442