Santi Patroni d'Italia, Rationalist church on Circonvallazione Gianicolense, Rome, Italy.

Santi Patroni d'Italia is a church building designed in rationalist style, featuring clean geometric forms and linear elements throughout its structure. The interior spaces are organized with functional simplicity, avoiding ornamental excess while maintaining the essential spaces needed for worship.

The parish was established on 27 June 1942 by a decree of Cardinal Vicar Francesco Marchetti Selvaggiani, named "In ea regione", to mark Pius XII's 1939 proclamation of Francis of Assisi and Catherine of Siena as patrons of Italy. The church was designed by Tullio Rossi and modified over the years, notably the presbytery after the liturgical reform of the Second Vatican Council. Pope John Paul II visited on 26 November 1989.

The dedication recalls Pius XII's 1939 proclamation of Francis of Assisi and Catherine of Siena as patrons of Italy; the parish was set up on 27 June 1942 to commemorate it. The Latin inscription on the facade reads "S. Francisco Ass. et S. Catharinae Sen. Italiae Patronis". Since the early 2000s icons of both saints flank the main altar, with Michael and Gabriel near the tabernacle.

The church stands at the start of Circonvallazione Gianicolense, at number 12, in the Gianicolense district, a short walk from Roma Trastevere railway station. The entrance is through the portico with three portals on the white marble facade; the central portal bears the coat of arms of Pius XII. Visitors enter for prayer during opening hours.

The Latin inscription above the stylised rose window reads "S. Francisco Ass. et S. Catharinae Sen. Italiae Patronis", and the central portal carries the coat of arms of Pius XII with the consecration year A.D. MCMXLII. The two side chapels are dedicated to the Sacred Heart of Jesus and to the Virgin Mary Saviour.