About Our Diocese



Chancery Office

Based in Southfield, Michigan, St. Thomas the Apostle Chaldean Catholic Eparchy is an Eastern rite diocese (eparchy) under the Chaldean Catholic Patriarchate of Babylon in Baghdad, Iraq. The Chaldean Church is in full union with the Roman Catholic Church while retaining its unique liturgy, spirituality, sacred art, and organization.

Once covering the entire United States, the eparchy now serves about 160,000 U.S. Catholics in the eastern half of the country, mostly of Chaldean descent. Metro Detroit has the highest concentration of Chaldeans in the United States, and ten of the eparchy’s twelve parishes are in Michigan.

Most Reverend Francis Y. Kalabat, Eparch (Bishop)

Bishop Francis Y. Kalabat was consecrated as the second eparch (bishop) of St. Thomas the Apostle Chaldean Catholic Eparchy on June 14, 2014, succeeding Bishop Ibrahim N. Ibrahim.

Bishop Francis Y. Kalabat
Bishop Francis Y. Kalabat

Bishop Kalabat began his undergraduate (philosophy) studies in 1989 at the University of San Diego’s Saint Francis de Sales Center for Priestly Formation in San Diego County, California. In 1992, he began the requisite graduate theological training for the Chaldean Catholic priesthood at Sacred Heart Major Seminary in Detroit, Michigan.

Ordained a priest on July 4, 1995, he was appointed as director of vocations for the eparchy and parochial vicar of Mother of God Cathedral in Southfield, Michigan. In 2001, he was appointed as pastor of St. Thomas Church in West Bloomfield, Michigan. He received his episcopal ordination and was installed as eparch on June 14, 2014.