Mezquita de Hassan Basha

The Hassan Pasha Mosque stands in the Sidi El Houari quarter of Oran, a coastal city in western Algeria. It is also known as the Pasha Mosque or the Great Mosque, and locally as the Mosque of Muhammad ibn Uthman. The building is associated with Islamic and Ottoman architecture and is listed among Algeria's cultural heritage monuments. It was built on the order of Baba Hassan, the Pasha of Algiers, and remains one of the notable Ottoman-period buildings of the city.

The mosque was built in 1797, during the rule of Bey Muhammad al-Kabir, on the orders of Baba Hassan, Pasha of Algiers. According to the Arabic source, it was built to commemorate the expulsion of the Spanish from the region.

During the French conquest, in 1830, French soldiers occupied the building and used it as living quarters. In 1835 it was re-established as a mosque, and it was renovated about three decades later. In 1952 it was added to the list of historic monuments. According to the Arabic source, it has been closed to the public since 2010.