Bishop-elect Peter Dai Bui, who was appointed as the second auxiliary bishop of the Diocese of Phoenix on Dec. 19 by Pope Leo XIV, will be ordained a bishop on Tuesday, Feb. 17, at 10 a.m. at St. Thomas Aquinas Parish in Avondale, Ariz. Due to limited seating capacity, the ordination Mass is by invitation only. Vespers for clergy, religious and immediate family will take place the night prior (Feb. 16).
The ordination Mass will be live streamed on the Diocese of Phoenix’s YouTube and Facebook platforms and will include a 30-minute program beginning at 9:30 a.m., featuring a four-part video series on getting to know Bishop-elect Bui. The series will include his story of fleeing Vietnam with his parents and nine siblings as a four-year-old, his priestly service involving the Amazon jungle, his heart for the poor and some of his hobbies and personal interests.
Ordained to the priesthood on Dec. 24, 2003, Bishop-elect Bui brings a diverse background to the diocese, including serving six years at the Vatican (2011-2016). While in Rome, Bishop-elect Bui was an official of the Pontifical Council Cor Unum, which leads charitable, humanitarian and disaster-relief efforts for the Church. It was in this role that he received the title of “Monsignor” in 2014 from Pope Francis. Prior to joining the Diocese of Phoenix in 2007, Bishop-elect Bui was a missionary priest with the Legionaries of Christ, serving in places like Venezuela and Colombia.
Bishop-elect Bui has served in various parish roles in the Diocese of Phoenix, including at Our Lady of Guadalupe Parish in Queen Creek (2007-2008), Christ the King Parish in Mesa (2008-2010), Resurrection Parish in Tempe (2010-2011) and Holy Spirit Parish in Tempe (2017-2022). He was appointed vicar for clergy for the diocese in July of 2022, a role he will continue as an auxiliary bishop.
Upon ordination, Bishop-elect Bui will join Auxiliary Bishop Eduardo Nevares to assist Bishop John Dolan in serving one of the fastest-growing dioceses in the United States.
