San Tommaso in Parione, Baroque church in central Rome, Italy

San Tommaso in Parione is a church rebuilt in 1582 to a design by Francesco da Volterra, with a 16th-century brick façade by Jacopo del Duca: two storeys, the lower split into three sections around a doorway crowned by a triangular tympanon, the upper with a central window under a rounded tympanon and volutes at the sides. Inside, three aisles are separated by pilasters with Ionic capitals; the nave has a visible tile roof, the side aisles plaster ceilings. The high altar against the apse wall has two marble columns and a 17th-century altarpiece of St Thomas.

The church is first documented in 1139, when Pope Innocent II consecrated it, likely after a rebuilding; the dedication plaque listing its relics is still set into the wall right of the entrance. In 1449 Pope Nicholas V gave it to the Company of Scriptors and Copyists of the Curia, and it became a titular church in 1517. The present building was rebuilt in 1582 to a design by Francesco da Volterra, executed by Mario and Camillo Cerrini.

The church displays religious artworks created by painters and sculptors working in Rome during the 1600s, reflecting the tastes and devotional interests of that era. Visitors can observe how artists approached sacred subjects and decorated spaces meant for prayer.

The church opens for visitors during regular hours, and you can walk inside to see the artworks and architectural details up close. It is advisable to check current visiting times before arriving, since religious services may affect when you can enter.

On the left wall survive frescoes from the pontificate of Innocent II (1130–1143), among them Saint Martin of Tours Dividing his Cloak. The dedication epigraph listing the relics granted to the church is still walled to the right of the entrance. The church is one of Rome's two national churches of Eritrea, and Mass is celebrated in the Alexandrine (Coptic) rite and in Ge'ez.