Ketchaoua Mosque

The Ketchaoua Mosque, also known as Djamaa Ketchaoua, is a mosque in the city of Algiers, the capital of Algeria. It was built during Ottoman period in the 17th century and is located at the foot of the Casbah of Algiers, a UNESCO World Heritage Site. The mosque stands on the first of the Casbah's many steep stairways and was logistically and symbolically a cynosure of pre-colonial Algiers. The mosque is noted for its unique fusion of Moorish and Byzantine architecture.

The mosque was originally built in 1612. In 1845 it was converted under French rule, to the Cathedral of St Philippe, which it remained until 1962. The old mosque was demolished between 1845 and 1860 and a new church was built and converted into a mosque in 1962. In spite of these transitions, the mosque has retained its original grandeur and is one of the major attractions of Algiers.