Abstract
<jats:p>The article attempts to conduct a comprehensive study of the history of the UGKC in the Odesa region. The main stages of its formation and development have been identified. The process of forming the Greek Catholic community in Odesa during 1917–1919 is analyzed. The church and educational activities of Father Ilya Klyvak in the city are considered, the purpose of which was to build a church and spread the influence of the Church in the southern region. The features of the revival and development of the UGKC in the 1990s are identified. The dynamics of the growth of Greek Catholic communities, the transformation of the church and administrative system and the problem of church construction of the UGKC in the Odesa region in the XXI century were studied</jats:p>