The Abbey of San Biagio was a former Roman Catholic monastery located in a rural site in the village of Piobbico, within the limits of the commune of Sarnano, in the province of Macerata, region of Marche, Italy.
Of the abbey, only the church, dedicated to St Blaise, and a small monastic apartment remain.
The portal has an inscription from 1117, noting some repairs which appear to have reduced the size of the church.
The apse and nave walls have fresco remnants from the 15th century, attributed respectively to Giovanni di Corraduccio and Matteo da Gualdo.
The crypt remains relatively intact, supported by sturdy simple columns.