San Donato in Polverosa, Romanesque church in Novoli, Florence, Italy

San Donato in Polverosa is a single-nave church in Florence's Novoli district. Its interior preserves detached 14th- and 15th-century frescoes by Matteo di Pacino and Cenni di Francesco di Ser Cenni, including an Annunciation, the Martyrdom of Saint Sebastian, Saint George and the Dragon, and the Madonna della Cintola. A neo-Gothic painting by Gaetano Bianchi, Pazzino de' Pazzi Honouring Saint Donato (1880), hangs inside; Bianchi also restored the frescoes.

The church was founded in 1187 by Augustinian canons known as "polverosi" for the colour of their habit. In 1322 it passed to the Cistercians, and in 1442 Pope Eugene IV installed the nuns of Santa Maria Maddalena delle Convertite. The convent was suppressed in 1809 and bought in 1814 by Count Nikolai Demidoff, who turned it into a villa. The church was reopened for worship in 1963.

The single nave holds detached 14th- and 15th-century frescoes: Matteo di Pacino painted the Annunciation, the Martyrdom of Saint Sebastian, Saint George and the Dragon and the Madonna della Cintola, while Cenni di Francesco di Ser Cenni did the Adoration of the Magi and the Birth of the Baptist. Gaetano Bianchi restored them and added the neo-Gothic Pazzino de' Pazzi pays homage to Saint Donato (1880).

The church stands in the Novoli district, near the Mugnone stream and the former Villa San Donato. Since 2017 its freed facade faces a small piazza with a modern portal, so approach from that side to see the entrance. The interior is a single nave; look for the detached 14th–15th-century frescoes on the walls.

The name 'Polverosa' comes from the gray-robed Augustinian friars, who earned the nickname 'dusty' because of their clothing color. This detail remains part of the church's local identity today.