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Pope Leo XIV Names Bishop Brendan Cahill to Lead Joliet, Succeeding Archbishop Ronald Hicks
Cahill will replace Ronald Hicks after leading Victoria since 2015 and serving on the U.S. bishops’ migration committee, the diocese said.
On Thursday, Pope Leo XIV appointed Bishop Brendan J. Cahill of Victoria, Texas, as the new bishop of the Diocese of Joliet, Illinois, with Archbishop Gabriele G. Caccia announcing the appointment in Washington.
The appointment fills the vacancy created when Pope Leo XIV named former Bishop Ronald A. Hicks as archbishop of New York late last year; Auxiliary Bishop Dennis E. has served as apostolic administrator since then.
Cahill led the Diocese of Victoria since 2015 and previously served in the Archdiocese of Galveston-Houston, holding degrees from the University of St. Thomas and Pontifical Gregorian University.
As chairman of the U.S. Conference of Catholic Bishops' Committee on Migration, Cahill launched the "You Are Not Alone" campaign in November 2025, advocating that "Human dignity does not depend on immigration status."
The Diocese of Joliet serves about 520,000 Catholics across seven counties and 4,218 square miles, with the Joliet Diocese announcing Cahill's installation Mass will take place this November.