El-Oued Mosque is a historical mosque located in Fes el Bali, Fes, Morocco. It was built by the Alaouite sultan Slimane of Morocco (Moulay Slimane) during his reign between 1792 and 1822 AD.
The mosque is built in accordance with the typical Moroccan mosque architectural style. It has a noticeable square-shaft minaret with merely ornamental window frames. A proportionally very big rectangular courtyard (sahn), partially planted with fruit trees, is what makes the mosque’s design unique.