Santa Emerenziana a Tor Fiorenza, Rationalist church in Trieste-Salario district, Rome, Italy

Santa Emerenziana a Tor Fiorenza is a rationalist church located in the Trieste-Salario neighborhood of Rome and features a clear, functional interior layout. Inside, pillars divide the space into three naves, with six side chapels distributed throughout and three entrance doors framed in travertine marble.

Built between 1940 and 1942 at the wish of Pope Pius XII, the church was designed by architect Tullio Rossi and consecrated on 28 November 1942. On 25 November 1942 Cardinal Vicar Francesco Marchetti Selvaggiani established the parish by the decree Ad pastoralis officii. Pope Paul VI made it a titular church, Santa Emerenziana a Tor Fiorenza, on 5 March 1973.

The apse mosaic, 523 square metres, was made in 1968 by the Franciscan priest Ugolino da Belluno and shows the Exaltation of the Church. A triptych by Olga Biancitti, once in the apse, now hangs on the entrance wall and depicts Saint Emerentiana in glory. The church is named for Emerentiana, a fourth-century martyr.

The church stands on Piazza Santa Emerenziana in Rome's Trieste quarter, not on Via Lucrino. It is a parish church and a cardinal titular seat, so it is normally open around Mass times; visitors should check the parish notice board for current hours and avoid visiting during services.

Architect Tullio Rossi designed this church following rationalist principles that emphasize clean lines and simplified geometric forms in a sacred building. This approach was unusual for churches of the time and makes the structure a notable example of modern design applied to religious architecture.