Nostra Signora del Santissimo Sacramento e dei Santi Martiri Canadesi (Latin: Dominae Nostrae a Sanctissimo Sacramento et Sanctorum Martyrum Canadensium, Our Lady of the Blessed Sacrament and the Canadian Martyrs) is the Roman Catholic national church of Canada, located at 46, Via Giovanni Battista de Rossi, Rome. It is also a titular church since February 1965, when Maurice Roy became its first Cardinal-Priest.