The Cathedral Basilica of the Assumption of the Virgin, also known as Cusco Cathedral, is the mother church of the Roman Catholic Archdiocese of Cusco. The cathedral is located on the Plaza de Armas. Building was completed in 1654,^[1] almost a hundred years after construction began.

Adjacent and joined to the cathedral is the smaller Iglesia del Triunfo,^[2] the first Christian church to be built in Cusco. The Iglesia de la Compania de Jesus,^[3] also on the Plaza de Armas, was built at a similar time as the cathedral.

The Cathedral, in addition to its official status as a place of worship, has become a major repository of Cusco's colonial art.^[2] It also holds many archeological artifacts and relics. The cathedral was designated a UNESCO World Heritage Site under the City of Cuzco listing in 1983.