Cathedrale Sainte-Marie, Catholic cathedral in Conakry, Guinea.

Cathedrale Sainte-Marie is a Catholic cathedral on the 3rd Boulevard in Conakry, built from 1928 onward in the 1930s under French administration. Its red and yellow exterior is noted for its architectural interest, with design elements of Orthodox character. The Presidential Palace stands just beside it and the Ministry of Higher Education faces it.

Monseigneur Raymond René Lérouge blessed the first stone in 1928, and the cathedral was built during the 1930s under French colonial administration. It serves as the mother church of the Archdiocese of Conakry, heir to the Apostolic Prefecture of French Guinea established on 18 October 1897 and raised to archdiocese on 14 September 1959.

The cathedral is the mother church of the Archdiocese of Conakry, heir to the Apostolic Prefecture of French Guinea created in October 1897 and raised to archdiocese in 1959. Its congregation is small, since Guinea is almost entirely Muslim; the archdiocese is led by Bishop François Sylla.

The cathedral faces the 3rd Boulevard, with the Presidential Palace just beside it and the Ministry of Higher Education opposite. Use these two buildings to orient yourself. As the seat of a small Catholic community in a mostly Muslim country, it is quiet outside service times.

The cathedral is the seat of an archdiocese whose lineage reaches back to the Apostolic Prefecture of French Guinea, created on 18 October 1897 and raised to archdiocese on 14 September 1959. Its congregation is small, since Guinea's population is overwhelmingly Muslim.