Ildebrando Antoniutti was an Italian cardinal of the Roman Catholic Church. He served as prefect of the Congregation for Religious from 1963 to 1973, and was elevated to the cardinalate by Pope John XXIII in 1962.

The Apostolic Nunciature to Canada is the diplomatic mission of the Holy See to Canada. It is headed by the Apostolic Nuncio to Canada, which is both an ecclesiastical and diplomatic office, with the rank of ambassador.