Devils of Monza (Italian: La monaca di Monza, also known as Sacrilege) is a 1987 Italian historical erotic-drama film directed by Luciano Odorisio. It is based on real-life events related to Marianna de Leyva, better known as Sister Virginia Maria, "The Nun of Monza", whose story was made famous by Alessandro Manzoni's novel The Betrothed.

Like Hail Mary (1986), Devils of Monza features Myriem Roussel in scenes of full frontal nudity. The film is considered part of the Nunsploitation subgenre, but despite its exploitative nature, the story it presents is largely faithful to the facts and testimony recounted in Mario Mazzucchelli's nonfiction book The Nun of Monza (1963), although it renders explicit some elements of the case which Mazzucchelli presents as hearsay or speculative.

The story of the Nun of Monza has inspired other films, including La monaca di Monza (1962), Il monaco di Monza (a.k.a. The Monk of Monza, 1962), The Lady of Monza (a.k.a.The Awful Story of the Nun of Monza, 1969), The True Story of the Nun of Monza (a.k.a. La vera storia della monaca di Monza, 1980), Virginia, la monaca di Monza (2004), and Sometimes the Good Kill (2017).