San Gregorio Magno, church building in Magliana, Rome, Italy

San Gregorio Magno is a 20th-century church in the Magliana district, on Piazza Certaldo, designed by architect Aldo Aloysi. It stands above the square and is reached by a staircase on the left. The building is entirely of exposed reinforced concrete, flanked by a tall bell tower bearing a statue of Christ with outstretched arms.

San Gregorio Magno was built in the 20th century to a design by architect Aldo Aloysi in the Magliana district. The parish was established on 14 December 1963 by decree of Cardinal Vicar Clemente Micara, "Neminem sane latet". Pope John Paul II created the titular church of San Gregorio Magno alla Magliana Nuova on 21 February 2001, and Pope Francis visited on 6 April 2014.

The church is the seat of the parish established on 14 December 1963 by decree of Cardinal Vicar Clemente Micara, "Neminem sane latet". Since 21 February 2001 it has been linked to the cardinal title "San Gregorio Magno alla Magliana Nuova", created by John Paul II; its first protector was Geraldo Majella Agnelo, succeeded in December 2024 by Jaime Spengler.

The church stands above Piazza Certaldo in the Magliana district, reached by a staircase on the left side of the facade. The entrance is therefore not step-free, and the raised position means the square below is visible from the top of the stairs.

The church is a titular church, linked to the cardinal title "San Gregorio Magno alla Magliana Nuova" created by John Paul II on 21 February 2001. Its first cardinal protector was Geraldo Majella Agnelo, who held the title until 2023; Jaime Spengler was named to it on 7 December 2024.