Santa Maria di Porcareccia is a 17th century church at Piazza del Castello di Porcareccia 1, in the north of the zone of Casalotti which is on the Via di Boccea just west of the Grande Raccordo Anulare (Circonvallazione Settentrionale).
The dedication is to the Blessed Virgin Mary.
This church is in the municipality of Rome, but belongs to the diocese of Porto Santa Rufina.
The history of the church is linked to that of the little fortified settlement of which it is a part, the Castello di Porcareccia. This appears in the historical records in 1002.
The present church was built as part of the complex when the Hospitaller Order of the Holy Spirit obtained the property in 1693. It served as the church of the district until it proved too small to cope with suburban development, and was replaced in 1954 by Santa Gemma Galgani a Casalotti close by to the east.
The Giovenale family obtained possession in 1932, and remain the owners. The church is now private, and has no public liturgical function.
The Castello is a compact set of buildings, completely surrounding a triangular courtyard. The little church occupies the middle of the south wing, and has a simple Baroque façade topped by a triangular pediment with a deep tympanum. A pair of blind pilasters at the corners meld with a sub-architrave below the entablature, forming a frame for the façade.
The single doorway has a molded door-case, above which is a large rectangular window with a Baroque frame in low relief.
The wooden marquetry altar frontal was crafted by Austrian prisoners of war interned here in the First World War.