The Aqaba Castle, also known as the Mamluk Castle of Aqaba, Jordan, is a Mamluk and Ottoman fortified caravanserai on the pilgrimage route to Mecca and Medina which, in its current form, dates back mainly to the 16th century. In the century preceding the First World War, it was used to a larger degree as a military stronghold.
The fort is located next to the Aqaba Flagpole, which carries the flag of the Arab revolt against the Ottomans. A building adjacent to the fort, which in 1917 served as Sharif Hussein's residence, now houses the Aqaba Archaeological Museum.