Ukrainian Greek Catholic Church: The Complete History — From the Baptism of Kyivan Rus to the Church in the Catacombs and Beyond
The Complete Guide
Ukrainian Greek Catholic Church: The Complete History — From the Baptism of Kyivan Rus to the Church in the Catacombs and Beyond
The story of the largest Eastern Catholic church in the world — born from the Christianization of Kyiv in 988, reunited with Rome in 1596, suppressed by Stalin in 1946, and kept alive in Soviet Siberia and the basements of Ukrainian villages for forty-three years
In 1946, the Soviet secret police — the NKVD — orchestrated one of the most brazen institutional frauds in the history of modern Christianity. They arrested all the bishops of the Ukrainian Greek Catholic Church, manufactured a fake “synod” attended by no bishop and dominated by compliant priests, and declared that the Union of Brest — the 350-year-old agreement by which the Church of Kyiv had entered communion with Rome — was null and void. On March 10, 1946, the Sunday of Orthodoxy, they held a triumphant celebration at Saint George’s Cathedral in Lviv. The Ukrainian Greek Catholic Church was officially dead.
It was not dead. It went underground — into homes, into forests, into the prisons of Siberia where its imprisoned Cardinal would spend the next eighteen years. It kept going in the Ukrainian diaspora communities of the United States and Canada that sent prayers, resources, and eventually political pressure to the prison camps. It survived through secret ordinations, clandestine liturgies, and the same stubborn faithfulness that had sustained it through every previous attempt to extinguish it across four centuries. When Mikhail Gorbachev’s glasnost cracked the Soviet system open in the late 1980s, the Ukrainian Greek Catholic Church emerged from the catacombs with — as one observer noted — “unique moral authority,” having refused every compromise that would have saved it the suffering.
The Ukrainian Greek Catholic Church is today the largest Eastern Catholic church in the world, with approximately 4.4 million faithful, headquartered in Kyiv, celebrating the Byzantine Divine Liturgy in the Ukrainian language, and navigating the particular challenge of maintaining its institutional life while Ukraine itself is under Russian military attack. This is the complete history of how it got here.
The Baptism of Kyivan Rus (988): Christianity Comes to Ukraine
In 988 AD, Grand Prince Vladimir the Great of Kyiv chose Byzantine Christianity for his people and ordered the mass baptism of the citizens of Kyiv in the Dnipro River. The story, preserved in the Primary Chronicle, describes his emissaries’ account of the Divine Liturgy at Hagia Sophia in Constantinople: “We knew not whether we were in heaven or on earth, for on earth there is no such splendor or beauty, and we do not know how to describe it.” The beauty of the liturgy convinced them that God dwelt there.
The Kyivan Metropolia was established under the Patriarchate of Constantinople, with the Byzantine tradition fully present: the Divine Liturgy of Saint John Chrysostom in Church Slavonic, the iconostasis, the Byzantine calendar, the theology of the Greek Fathers, and the canonical customs of the Byzantine East including married parish clergy. The Ukrainian Greek Catholic Church traces its continuous historical identity from this 988 moment — it understands itself as the Kyivan Church, maintaining the apostolic succession and the liturgical tradition of the original Christian community of Ukraine, which entered into union with Rome in 1596 while retaining the entirety of its Byzantine heritage.
The church’s formal title for its head — Major Archbishop of Kyiv-Halych — reflects this claim to continuity with the Metropolitanate of Kyiv that was established at Vladimir’s baptism a thousand years ago.
The Kyivan Church: Between East and West
From the beginning, the Church of Kyiv occupied a distinctive middle position between the Eastern and Western Christian worlds. Unlike the churches of Russia — which aligned deeply with Constantinople and were hostile to Rome — the Kyivan Metropolitanate maintained relationships with both patriarchates, sending representatives to Western councils and engaging in theological dialogue with Rome. Kyivan metropolitans participated in the Council of Constance in 1418 and the Council of Florence in 1439.
By the late 16th century, the Kyivan bishops faced a specific set of institutional problems. The Orthodox hierarchy in the Polish-Lithuanian Commonwealth was poorly educated, politically compromised, and under pressure from a Catholic nobility that controlled appointments. The Patriarch of Constantinople was himself under Ottoman control. Several Kyivan bishops concluded that the most promising path for maintaining genuine Orthodox theology and Eastern practice — paradoxically — was to accept union with Rome, which would give them canonical protection under the Catholic legal system while allowing them to retain everything distinctively Eastern.
The Council of Florence (1439) and Metropolitan Isidore
The direct prelude to the Union of Brest runs through the Council of Florence (1438-1445). Metropolitan Isidore of Kyiv — one of the principal Greek representatives — was among the architects of the union decree signed on July 6, 1439. Pope Eugene IV elevated him to the dignity of Cardinal and appointed him papal legate to Poland, Lithuania, and Muscovy.
When Isidore returned to Moscow to promulgate the union, Grand Prince Vasily II had him arrested. The Moscow church repudiated Florence entirely and eventually declared its own autocephaly in 1448, permanently separating from Kyiv and from Constantinople. This Moscow rejection of Florence shaped Russian Orthodox theological and political identity in ways directly relevant to the 20th-century persecution: in the Soviet system, Russian Orthodoxy under the Moscow Patriarchate was the state-tolerated religion, and the Ukrainian Greek Catholics were destroyed specifically to force them into the Moscow structure.
For Ukraine, Florence left a positive legacy: the demonstration that a church could be genuinely Eastern in its liturgy and tradition while genuinely Catholic in its relationship with Rome.
The Union of Brest (1596): The Church Is Born
The Union of Brest was the formal founding moment of the Ukrainian Greek Catholic Church. It was negotiated over several years in the early 1590s, driven primarily by five Ruthenian bishops. The key figures were Bishop Ipatiy Potiy of Volodymyr-Volynskyi and Bishop Kyrylo Terletsky of Lutsk, who traveled to Rome in 1595 to negotiate terms directly with Pope Clement VIII.
The Orthodox Metropolitan of Kyiv, Michael Rahoza, and five Orthodox bishops accepted papal primacy, the Filioque, purgatory, and the validity of unleavened bread. In exchange, they retained absolutely everything Eastern: the Byzantine Divine Liturgy in Church Slavonic, the Eastern sacramental theology, the Julian calendar, the iconostasis, Byzantine vestments, Eastern monastic traditions, married parish clergy, and the canonical customs of the Kyivan Church. The formal proclamation of union took place at a synod in Brest on October 8-9, 1596. The new institution was called the Ruthenian Uniate Church — the Uniate Church of Rus’.
The Kyivan bishops kept the complete Byzantine tradition: the Divine Liturgy of Saint John Chrysostom, the Eastern calendar, the iconostasis, Byzantine vestments and chant, Eastern sacramental theology, the Julian calendar, married parish clergy, and the Eastern canonical structure. They also maintained the title “Metropolitan of Kyiv, Halych, and all Rus’” — asserting continuous succession from the 988 baptism. Catholic in relationship to Rome. Eastern in everything else.
The Aftermath: Two Rival Churches, One City
The Union of Brest was not received peacefully. Two bishops who had been involved in the negotiations refused to sign at the last moment. A significant portion of the Ruthenian Orthodox refused the union and maintained their allegiance to Constantinople. In 1620, Patriarch Theophanes of Jerusalem secretly ordained a parallel Orthodox hierarchy for the Ukrainian lands, creating two rival sets of bishops. Both hierarchies were eventually recognized in 1632 under King Wladyslaw IV.
Despite the opposition, the Uniate Church grew substantially. By the early 18th century, a majority of the Christian population of Ukraine and Belarus was Uniate rather than Orthodox — a demographic dominance that was systematically reversed by the Russian Empire’s forced “reunification” campaigns of 1839 and 1875, which drove millions of Uniates into the Russian Orthodox Church under threat of punishment. These forced conversions created the deep historical wound that later Ukrainian Greek Catholic communities would invoke again and again as context for the 1946 Lviv Sobor.
Saint Josaphat Kuntsevych: The First Martyr of the Union
The first canonized saint of the Ukrainian Greek Catholic Church was a man beaten to death by a mob and thrown into the Dvina River. Archbishop Josaphat Kuntsevych of Polotsk — a Basilian monk who had risen through the Uniate hierarchy through pastoral zeal and personal holiness — was murdered on November 12, 1623, in Vitebsk. He was thirty-nine years old.
Josaphat was a vigorous defender of Uniate rights, someone who fought for the restoration of church buildings and canonical recognition that the Orthodox side contested. His murder in the charged atmosphere of the 1620s shocked both sides and eventually produced a diplomatic response from the Polish crown. He was beatified by Pope Urban VIII in 1641 — eighteen years after his death — making him the first Ukrainian Catholic beatified by Rome. Canonized by Pope Pius IX in 1867. He is venerated as the patron saint of unity between Eastern and Western Christianity, and his feast day (November 12) is observed throughout the Ukrainian Greek Catholic Church worldwide.
The Austrian Era: Galicia, Habsburg Protection, and Institutional Growth
The partitions of Poland (1772, 1793, 1795) divided the Polish-Lithuanian Commonwealth. Galicia — with Lviv and the bulk of the Ukrainian Greek Catholic population — went to Austria. The Ukrainian lands east of the Zbruch River eventually came under the Russian Empire, where the Greek Catholic Church was systematically dismantled: the 1839 Synod of Polotsk forced approximately 1.5 million Greek Catholics into the Russian Orthodox Church, with a second forced conversion in 1875 in the Kholm region. By century’s end, Greek Catholicism on Russian imperial territory had been effectively extinguished.
In Austrian Galicia the opposite unfolded. The Habsburg Empress Maria Theresa introduced the term “Greek Catholic” in 1774 to signal equal dignity with the Latin Church. She funded Greek Catholic schools, required formal theological education for clergy, and recognized Greek Catholic priests as legally equal to Latin Catholic priests. This institutional investment produced, over the 19th century, a highly educated Greek Catholic clergy who became the primary Ukrainian-language intellectual class of the region. In the absence of a Ukrainian secular nobility or bourgeoisie, it was the Greek Catholic parish priest who was the educated leader of the Ukrainian rural community — teacher, cultural organizer, national consciousness bearer. Metropolitan Andrey Sheptytsky, the greatest figure of modern Ukrainian Catholicism, was the inheritor of this tradition.
Metropolitan Andrey Sheptytsky: The Greatest Figure of Modern Ukrainian Catholicism
Roman Maria Alexander, Count Sheptytsky, was born in 1865 into a Polonized Ukrainian noble family. He converted back to Greek Catholicism as a young man, entered the Basilian monastic order, and in 1900 was appointed Metropolitan of Lviv at age 35. He held that position for the next forty-four years — through the Russian occupation of World War I, the Soviet occupation of 1939-1941, the Nazi occupation of 1941-1944, and the return of Soviet power in 1944 — until his death on November 1, 1944. He was the most important Ukrainian Catholic figure since the Union of Brest.
Sheptytsky modernized the Ukrainian Greek Catholic institutions, founded or supported dozens of educational and charitable organizations, oversaw the construction of Saint George’s Cathedral in Lviv, and founded the Ukrainian Catholic University tradition that continues today. He used his episcopal authority as a platform for the defense of Ukrainian national and cultural identity against Polonization, Russification, Nazi racial ideology, and Communist atheism. He was arrested and imprisoned by the Russian imperial government in 1914 and spent three years in Russian captivity.
Sheptytsky and the Holocaust
During the Nazi occupation of Galicia (1941-1944), Sheptytsky wrote pastoral letters condemning murder and asserting the sacredness of human life. In August 1942 he wrote directly to SS Reichsfuhrer Heinrich Himmler protesting the mass killings of Jews. He wrote to Pope Pius XII detailing the genocide he was witnessing. Working with his brother Klymentiy Sheptytsky, a Studite monk, he organized a network of Greek Catholic monasteries, convents, and private homes to shelter Jewish children and families. The network is estimated to have saved approximately 150-200 Jewish lives. Yad Vashem recognized him as Righteous Among the Nations posthumously; his cause for beatification at Rome has been formally opened.
Metropolitan Andrey Sheptytsky
Born 1865; Metropolitan at 35; led the Church 44 years through every catastrophe of the early 20th century. Hid and saved hundreds of Jews during the Nazi occupation. Died November 1, 1944 -- his death removed the one restraining presence. The Soviet operation against the church began within six weeks.
Josyf Cardinal Slipyj
Born 1892; secretly consecrated bishop by Sheptytsky 1939. Arrested April 11, 1945. Refused conversion through 18 years in Siberian and Mordovian camps. Released 1963 through JFK intercession and Vatican II context. Built Ukrainian Catholic University in exile in Rome. Died 1984. His cause for canonization has been opened.
World War II, the Holocaust, and the Church Under Two Occupations
The Second World War subjected the Ukrainian Greek Catholic Church to two successive occupations. The first Soviet occupation (1939-1941) immediately nationalized church institutions, arrested and deported priests, and shut down the church newspaper and theological academy. Sheptytsky’s moral authority and the complications of Operation Barbarossa limited the initial assault, but its intentions were clear. The German occupation (1941-1944) brought the Holocaust to Galicia, visible in the most literal sense to the surrounding population. Sheptytsky’s pastoral interventions — the letters, the sheltering network, the direct protests — were the church’s answer.
When Sheptytsky died on November 1, 1944, with the Soviets having re-entered Galicia, the loss was catastrophic. He had been the figure whose international moral authority had restrained the Soviets from moving immediately against the church. His death removed that constraint. The Soviet operation against the church began in December 1944 — six weeks after Sheptytsky’s death.
April 11, 1945: The Arrest of the Bishops
On March 15, 1945, Stalin approved a secret instruction titled “On the measures aimed at the estrangement of the Greek-Catholic (Uniate) Church in the Soviet Union from the Vatican and its subsequent annexation to the Russian Orthodox Church.” The plan was explicit: manufacture an apparent internal church decision to dissolve the union, absorb the church and its properties into the Russian Orthodox Church, and eliminate the institutional existence of Ukrainian Greek Catholicism on Soviet territory.
On April 11, 1945, in Saint George’s Cathedral in Lviv, the NKVD arrested Metropolitan Josyf Slipyj along with four other bishops simultaneously. Similar arrests were conducted in other cities. The Greek Catholic Theological Academy in Lviv was closed, as were the seminaries and deacons’ schools. The bishops were charged with “collaboration with the Nazis” and “anti-Soviet activity.” With the bishops in custody, the NKVD recruited Father Havryil Kostelnyk — a theologian with longstanding conflicts with the Vatican — to organize the fake synod that would follow.
The Lviv Pseudo-Sobor (March 8-10, 1946): The Fake Synod
The “Sobor of Lviv” convened on March 8, 1946, at Saint George’s Cathedral — the same cathedral where Sheptytsky had been buried and where Slipyj had been arrested eleven months earlier. The assembled delegates were priests and laymen organized by Kostelnyk and the NKVD. Not a single Ukrainian Greek Catholic bishop was present. They were all imprisoned. The event was canonically null from the moment it opened.
The proceedings followed a script written by the NKVD. When Father Vasyl Lesiuk suggested the council should be treated as merely a preliminary meeting with no final decisions, no one dared support him. Lesiuk was arrested shortly after the council ended. On March 8, the delegates unanimously adopted the resolution “to reject the decisions of the Council of Brest in 1596, to dissolve the Union, to disaffiliate from the Vatican, and to return to our parental holy Orthodox faith — the Russian Orthodox Church.” On March 10 — the Sunday of Orthodoxy in the Byzantine calendar — a triumphal liturgy was held. Pre-written telegrams to Stalin, Khrushchev, and Patriarch Alexy, composed by the NKVD, were sent from the assembled clergy.
Cardinal Josyf Slipyj: 18 Years in Soviet Prison Camps
Metropolitan Josyf Slipyj, arrested April 11, 1945, spent the next eighteen years in Soviet prison camps — sentenced, retried, and resentenced multiple times as each term expired. He was held in camps in Siberia and Mordovia (the Dubravlag complex at Potma), environments of extreme physical hardship. Throughout his imprisonment, Slipyj refused every offer of release that required apostasy. He was repeatedly told he could walk out of the camps if he would agree to become a Patriarch or bishop of the Russian Orthodox Church. He refused every time.
In prison, Slipyj wrote. He produced a multi-volume history of the Catholic Church in Ukraine while living among criminals, investigators, and jailers in Siberian camps. Writing was an act of defiance — a refusal to let the intellectual and spiritual dimensions of his vocation be taken from him even when everything institutional had been stripped away.
Slipyj was released in February 1963 through an extraordinary convergence: President John F. Kennedy’s administration had made his release a diplomatic objective, and the Second Vatican Council — then in session under Pope John XXIII — created a context in which the Soviet Union had reason to make a gesture of goodwill toward the Catholic world. He was expelled from the Soviet Union rather than formally released. He went to Rome, where he built the Ukrainian Catholic University in exile, served as the public face of the suppressed church for two decades, and was eventually named Cardinal by Pope Paul VI. He died in Rome on September 7, 1984, never having been permitted to return to Ukraine. His remains were returned to Lviv after Ukrainian independence.
The Church in the Catacombs (1946-1989)
After 1946, the Ukrainian Greek Catholic Church did not cease to exist. It went underground — into homes, into basements, into forests, into the small private spaces where Soviet surveillance could not fully reach. The communities that refused to accept the Lviv Sobor — which by subsequent research was the vast majority of Greek Catholic faithful — maintained their Greek Catholic identity in the practice of their daily religious life: in the prayers they said, in the icons they kept, in the feast days they observed.
The underground church required constant improvisation. Secret ordinations kept the priesthood alive. Secret theological seminaries operated in Ternopol and Kolomyia until the Soviet press reported them in the 1960s, leading to the arrest of their organizers. In 1974 a clandestine convent was discovered and shut down in Lviv. Each discovery produced arrests and sentences, but also demonstrated that the church was not merely surviving — it was growing, recruiting, training.
Academic research on this period has documented, through interviews with participants, how deeply resistant the Galician communities were to genuine assimilation into Russian Orthodoxy, even when they formally belonged to Orthodox parishes. The majority of those who formally registered as Orthodox maintained Greek Catholic identity and practices privately — forming what one historian described as “a church within the church.”
The Diaspora That Sustained the Underground Church
The Ukrainian Greek Catholic diaspora in North America — built by waves of immigration from Galicia beginning in the 1870s and accelerating through the post-World War II refugee flows — was the external lifeline of the catacomb church. While Cardinal Slipyj was in Siberia and his church was conducting liturgies in basements, the communities of Philadelphia, Chicago, Detroit, Toronto, and Edmonton maintained free Ukrainian Catholic institutions that preserved the tradition, educated clergy, and kept the political case for the church’s restoration before Western governments and the Vatican.
The Ukrainian Catholic University in Rome — founded by Slipyj after his release — became the institutional expression of this diaspora support. Built on the Janiculum Hill with contributions from Ukrainian Catholic communities worldwide, it served as the theological and cultural center of the exile church and the training ground for the clergy who would return to Ukraine after 1989 to rebuild. The diaspora also provided the political pressure that contributed to Slipyj’s 1963 release and to the broader international campaign to force the Soviet government to acknowledge the church’s continued existence.
Glasnost, the Protests, and December 1, 1989
Mikhail Gorbachev’s glasnost policy created space for public discussion of issues that had been forbidden. Ukrainian dissidents who had been risking imprisonment for years moved into more open activity. The prominent dissident Viacheslav Chornovil organized a series of large public rallies in Lviv in 1988-1989 calling for the church’s unbanning. The Ukrainian Greek Catholic Church did not wait for formal permission — in 1989, its leaders announced that the church would operate openly regardless of Soviet law. The announcement was met with massive popular support.
The formal legal recognition came on December 1, 1989. The legalization was the direct result of internal pressure from the church’s own defiant declaration, popular mobilization in Galicia, diaspora political pressure, and the broader collapse of Soviet authority. Five months later, on May 1, 1990, a public open-air Divine Liturgy was celebrated on the streets of Lviv with hundreds of thousands of participants — one of the largest public religious gatherings in Eastern Europe since World War II.
The Restoration and the Post-Soviet Church
The restoration after 1989 was simultaneously a triumph and a crisis. The triumph was the return of institutional public life — churches, schools, monasteries, seminaries, and the Ukrainian Catholic University in Lviv. The scale of popular return was staggering: thousands of parishes that had been formally Orthodox reasserted their Greek Catholic identity in the months after legalization.
The crisis was property. The churches transferred to the Russian Orthodox Church in 1946 and 1947 were not automatically returned in 1989. The process was slow, contested, and in many cases involved confrontations between Greek Catholic and Orthodox communities. The church took an uncompromising position — property stolen by an illegal act must be returned — and by 1993 most buildings had been recovered.
In 2001, Pope John Paul II made his pastoral visit to Ukraine — the first papal visit in the country’s history. He beatified 28 Ukrainian Catholic martyrs at a ceremony in Lviv attended by hundreds of thousands of faithful. In 2005, the church’s seat was moved from Lviv to Kyiv, restoring the title “Major Archbishop of Kyiv-Halych” to its natural home after two and a half centuries of displacement.
The Liturgy: Byzantine Rite in Ukrainian
The Ukrainian Greek Catholic Church celebrates the Byzantine Divine Liturgy primarily in the Ukrainian language. The liturgy is fully Eastern: the Divine Liturgy of Saint John Chrysostom in its standard form, with the iconostasis, Byzantine vestments and chant, the Eastern sacramental theology (including baptism by triple immersion, chrismation, and first Eucharist administered together to infants), and the Eastern calendar. The church does not insert the Filioque into the Nicene Creed — maintaining the Eastern text per the terms of the Union of Brest. Married men may be ordained priests; bishops are celibate.
The Christ Our Pascha catechism (2014) is the most comprehensive Eastern Catholic catechetical document in English — a full exposition of Byzantine Catholic faith rooted in the Eastern patristic and liturgical tradition. It is used not only in Ukrainian Catholic parishes but across multiple Eastern Catholic traditions.
| Feature | Ukrainian Greek Catholic Practice |
|---|---|
| Liturgical Language | Ukrainian (primary); Church Slavonic (traditional communities) |
| Rite | Byzantine (full Eastern practice) |
| Divine Liturgy | Saint John Chrysostom (standard); Saint Basil (great feasts and Lent); Pre-Sanctified Gifts (Lent weekdays) |
| Filioque in Creed | Not inserted -- original Eastern text maintained, per terms of Union of Brest |
| Clergy | Married men may be ordained priests; bishops celibate |
| Calendar | Julian calendar historically; Synod voted 2023 to transition to Gregorian calendar |
| Canonical Status | Major Archiepiscopal Church sui iuris; directly under Holy See |
| Head | Major Archbishop Sviatoslav Shevchuk (since 2011), based in Kyiv |
| Worldwide Faithful | Approximately 4.4 million (est. 2014) |
The Ukrainian Greek Catholic Church in America
The Ukrainian Greek Catholic presence in the United States is inseparable from the broader story of Galician immigration that began in the 1870s and reached its peak in the great migration wave of 1880-1914. The Galician immigrants came primarily for industrial work, settling in the coal towns of Pennsylvania, the steel mill suburbs of Pittsburgh, and the manufacturing cities of the northeast and midwest. The Greek Catholics among them found, like all Eastern Catholic immigrants, that the American Catholic hierarchy had no understanding of or sympathy for their church.
The early Ukrainian immigrants were served under the same precarious arrangement as the Ruthenian immigrants — under the nominal jurisdiction of local Latin bishops who resented their presence, refused to recognize married priests, and actively discouraged Eastern rite parishes. The losses to Orthodoxy among early Ukrainian immigrants in America were significant, driven by the same dynamic that devastated the Ruthenian community: Latin bishops who treated Eastern Catholics as second-class, and Russian Orthodox missionaries who offered the full Eastern tradition without the jurisdictional complications.
Bishop Soter Ortynsky: The First Eastern Catholic Bishop in America
The first Eastern Catholic bishop in the United States was Bishop Soter Stephen Ortynsky — a Ukrainian Basilian monk, appointed in 1907 by Pope Pius X to serve all Slavic Eastern Catholics of the Byzantine Rite in America. His appointment was immediately undercut by the same decree — Ea Semper (1907) — that made him subject to local Latin bishops rather than an independent ordinary. He was a bishop without full episcopal authority, required to get Latin bishops’ approval for his own acts within their dioceses.
He openly refused to comply, writing: “I did not and do not obey this bull, because it is against the dignity of our Church.” Despite the canonical restrictions, he built parishes, brought religious sisters to America, and founded mutual aid organizations. He died in 1916 after nine years of ministry in impossible circumstances. After his death, the apostolic administration was split: Father Petro Poniatyshyn for the Galician (Ukrainian) Greek Catholics, and Father Gabriel Martyak for the Transcarpathian (Ruthenian) Catholics — formally recognizing the distinct identities that would eventually produce the separate Ukrainian and Ruthenian canonical structures in America.
The Archeparchy of Philadelphia and the American Church Today
The canonical structure of the Ukrainian Greek Catholic Church in the United States is centered on the Ukrainian Catholic Archeparchy of Philadelphia — the metropolitan see, established in 1958 when Pope Pius XII elevated the existing exarchate to a full archeparchy. The archeparchy’s cathedral is the Cathedral Basilica of the Immaculate Conception in Philadelphia. Today the American Ukrainian Catholic Church consists of four jurisdictions:
| Jurisdiction | Established | Cathedral City | Coverage |
|---|---|---|---|
| Archeparchy of Philadelphia (Metropolitan See) | 1913 (exarchate); 1958 (archeparchy) | Philadelphia, PA | Northeastern US: PA, NJ, NY, New England |
| Eparchy of Stamford, CT | 1956 | Stamford, CT | Additional northeastern communities |
| Eparchy of St. Josaphat in Parma, OH | 1983 | Parma, OH | Midwest: OH, IL, MI and surrounding states |
| Eparchy of St. Peter and Paul, Phoenix, AZ | 2009 | Phoenix, AZ | Western US: AZ, CA, TX and western states |
The American Ukrainian Catholic community numbers approximately 500,000-600,000 faithful — concentrated in Pennsylvania, New Jersey, Ohio, Illinois, and Michigan, the areas of original immigrant settlement. The community has been significantly enlarged by post-World War II refugees and, most recently, by Ukrainians displaced by Russia’s 2022 invasion. American Ukrainian Catholic parishes have been centers of reception and pastoral care for this new wave, providing both spiritual community and practical support for people navigating a new country while managing crisis and grief.
The Church Today: 4.4 Million Faithful, One Major Archbishop, an Ongoing War
The Ukrainian Greek Catholic Church today is the largest Eastern Catholic church in the world, with approximately 4.4 million faithful concentrated primarily in western Ukraine (Galicia and Volhynia), with diaspora communities in North America, Australia, Brazil, Argentina, and across Western Europe. Major Archbishop Sviatoslav Shevchuk leads the church from its Patriarchal Curia in Kyiv. The Synod of Bishops — approximately 43 bishops from 11 countries — is the highest governing body. The Ukrainian Catholic University in Lviv is one of the finest universities in Ukraine, graduating students who go into Ukrainian public life carrying the intellectual formation of the Greek Catholic tradition.
The war has brought the Ukrainian Greek Catholic Church into sharp focus. The church has been vocal in its support for Ukrainian sovereignty — unsurprisingly, given its 400-year history as a target of Russian imperial and Soviet aggression. Russian missiles have struck Ukrainian territory including communities with significant Greek Catholic populations. The church has established chaplaincy programs for the Ukrainian military, organized humanitarian relief, and maintained pastoral ministry in conditions of active war. Major Archbishop Shevchuk has been an internationally visible voice for the Ukrainian position.
The decision in 2023 by the Ukrainian Greek Catholic Synod to transition from the Julian to the Gregorian calendar — moving Christmas to December 25 — was both a liturgical decision and a political one: a deliberate distancing from the Russian Orthodox calendar practice and a signal of the church’s identification with the Western-oriented Ukrainian national project that the war has made urgent and explicit.
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The Church That Came Out of the Catacombs
They called it the largest illegal church in the world. Stalin declared it dissolved in 1946 — through a fake synod, through arrested bishops, through transferred property and imprisoned priests. For forty-three years it existed in basements and forests and Siberian prison camps. And on December 1, 1989, it came back. The church that refused every deal that would have saved it the suffering emerged with unique moral authority. That authority is still being earned, under bombardment, in Kyiv.
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