San Michele Arcangelo is a Romanesque-style, Roman Catholic located in the center of Sermoneta, region of Lazio, Italy.

The stone church was putatively built in the 11th century atop the ruins of an ancient pagan temple.

The facade is made of non-hewn, irregular stones and sports awkward elements such as a portico entering from the alley at a right angle.

The church crypt has Romanesque-era frescoes by unknown authors.

The church was once affiliated with a confraternity of flagellants known as the Battenti.