The Ukrainian Greek Catholic Church (UGCC) is an Eastern Catholic Church in full communion with the Apostolic See. By the number of its faithful (more than 5.5 million), it is the largest in the world of all 23 Eastern Churches in the Catholic community and the second largest after the Latin Church. It is led by His Beatitude Sviatoslav, the Major Archbishop of Kyiv and Halych. It has its own rite, which is derived from the Constantinople tradition, and it preserves the liturgical, theological, spiritual and disciplinary heritage of this tradition in the culture and historical circumstances of its people.

    As a part of the ancient Kyivan Church, the UGCC seeks to restore its original unity. In the social and civic life of its faithful, it defends the right of the Ukrainian people to their independent unified state and the establishment of a vibrant civil society in it; it implements a large number of charitable and community projects in Ukraine and abroad.

    The UGCC has a continuous hierarchical succession since the official baptism of Rus-Ukraine and the establishment of the church structure on its territory.