The Basilica Shrine of Our Lady Mediatrix of All Graces[1] (Portuguese: Basílica Santuário Nossa Senhora Medianeira de Todas as Graças)[2] or the Basilica of Santa Maria is a Catholic church dedicated to the Virgin Mary, located in Santa Maria municipality, Rio Grande do Sul, in the south of Brazil.

The basilica gives its name to the avenue and the neighborhood where it is located, on the other hand it is the end point of the Pilgrimage of the "medianera".

In 1943, on the initiative of Don Antonio Reis, the first romeria (a group religious pilgrimage) was held in the state.

On May 31, 2024, Pope Francis authorized the canonical coronation of the Marian icon through a decree issued by the Dicastery for Divine Worship and the Discipline of the Sacraments.

[4] The coronation ceremony was presided by the Archbishop of Santa Maria, Leomar Antônio Brustolin, on August 15, 2024.