Notre Dame d'Afrique, or "Our Lady of Africa," is a Catholic basilica located in Algiers, Algeria. It was built in the late 19th century on a hill overlooking the Bay of Algiers and the Mediterranean Sea.

Construction of the basilica began in 1858 and took more than a decade to complete. It was designed by the French architect Jean Eugène Fromageau in a Neo-Byzantine style, with a large central dome supported by four smaller domes and a bell tower on one side.

The interior of the basilica features intricate mosaics and stained glass windows, with a number of chapels dedicated to different saints. The basilica also houses a museum with artifacts related to the history of Christianity in Algeria.

Notre Dame d'Afrique has become a popular pilgrimage site for Catholics in Algeria and around the world, as well as a popular tourist destination. It offers stunning views of Algiers and the surrounding area and has been recognized as a historical monument by the Algerian government.