The mission of the Greek Orthodox Archdiocese is to proclaim the Gospel of Christ, to teach and spread the Orthodox Christian Faith, to energize, cultivate, and guide the life of the Church in the United States of America according to the Orthodox Christian Faith and Tradition.

The Greek Orthodox Church in America sanctifies the faithful through divine worship, especially the Holy Eucharist and other Sacraments, building the spiritual and ethical life of the faithful in accordance with the Holy Scriptures, Sacred Tradition, the doctrines and canons of the Ecumenical and local Councils, the canons of the Holy Apostles and the Fathers of the Church and of all other Councils recognized by the Orthodox Church.

The Archdiocese serves as a beacon, carrier, and witness of the message of Christ to all persons who live in the United States of America, through divine worship, preaching, teaching, and living of the Orthodox Christian Faith.