What is the official public prayer of the Catholic church?

Roman Catholic AnswerLiturgy is the official public prayer of the Church as opposed to private devotion. The Eucharist is the ultimate expression of the Church's liturgy, but the other sacraments and sacramentals, as well as the Divine Office are all part of the Liturgy or official public prayer of the Church. Anytime anyone, priest, religious, or layman prays their Breviary in their private room, they are an official representative of the Church presenting the Church's public prayer to God.