Laurentius Abstemius (c. 1440–1508) was an Italian writer and professor of philology, born at Macerata in Ancona. His learned name plays on his family name of Bevilaqua (Drinkwater), and he was also known by the Italian name Lorenzo Astemio. A Neo-Latin writer of considerable talents at the time of the Humanist revival of letters, his first published works appeared in the 1470s and were distinguished by minute scholarship. During that decade he moved to Urbino and became ducal librarian, although he was to move between there and other parts of Italy thereafter as a teacher.