Giovanni Lorenzo Berti (1696–1766), also known by his Latinized name Johannes Laurentius Berti, was an Italian Augustinian theologian. The General of the Order of Hermits of St. Augustine, Schiaffinati, instructed him to write a book, to be used by all the students of the Order, expounding the whole of Augustine of Hippo's thought and particularly his doctrine of grace and free will. His huge Opus de Theologicis Disciplinis expounded not the private views of a theologian, but those of the Augustinian Order and therefore had a semi-official status in the Roman Catholic Church.