Santa Maria delle Grazie, also known as Madonna del Letto (of the cot), is a Renaissance-style, Roman Catholic church located near the city center in Pistoia, region of Tuscany, Italy.
According to tradition, in 1336, a young girl convalescing at the then Hospital of San Donnino was cured of her illness by a vision of the Virgin Mary.
The room of that hospital became an oratory at this site, and in the 15th-century, this church was erected, conserving the bed (letto) in which the miracle occurred in one of the chapels.
In 1526, an adjacent Augustinian monastery was established, under the supervision of the cathedral and the Operai di San Jacopo.
After the suppression in the late 18th century, the church was assigned to what was then the adjacent Hospital del Ceppo.