The Abbey of Viboldone is an abbey in Viboldone, a frazione of San Giuliano Milanese , in the province of Milan, northern Italy.

The abbey was founded in 1176 and completed in 1348 by the Humiliati, an order of monks, nuns and lay people who worked in the abbey producing wool cloths and cultivated the nearby fields with innovative techniques.

After the suppression of the Humiliati by Pope Pius V (1571), the abbey went to the Olivetan Benedictines, who were forced to leave the abbey in 1773, when Lombardy fell in Austrian hands.

After several years of abandonment, the abbey is currently home to the Community of Madre Margherita Marchi (Benedictine nuns) since 1941.

The façade (finished in 1348) is hut-shaped, with mullioned windows and visible brickwork with white stone decorations, and divided into three sectors by two semi-columns. The entrance portal is in white marble, and is surmounted by a lunette with marble sculptures of the "Madonna with Child between the Saints Ambrose and John of Meda".