Dom Ambrose Agius O.S.B., born as Tancredi Alfred Agius (September 17, 1856 – December 13, 1911) was a Maltese Archbishop of the Roman Catholic Church.A member of the Benedictine Order, Agius served under the pontificate of Pope Leo XIII and was appointed the Apostolic Delegate to the Philippines by Pope Saint Pius X in 1904. Agius was delegated to canonically crown the image of Our Lady of La Naval de Manila in 1906.