Lucerius was a 7th-century Benedictine monk who served as the third abbot of the Farfa monastery. Born in Maurienne around 650, he was raised at the abbey by its first leader, Thomas of Maurienne. His leadership, which began no later than 724, was characterized by significant institutional growth and the acquisition of new lands and privileges. He died in 740 at Farfa, leaving behind a strengthened monastic community.