Una Voce is an international lay organization of Roman Catholics faithful to the Magisterium of the Catholic Church and obedient to the authority of the Pope. We are dedicated to maintaining the traditional Roman liturgy codified by Pope St. Pius V, known as the Tridentine or "Extraordinary" form of the Roman Rite, as one of the universally recognized and honored forms of Eucharistic celebration. We exist to serve families interested in living and nurturing traditional Catholic culture and the traditional Catholic liturgy that is its glory and foundation.