PHOENIX — In a significant announcement on Friday, the Diocese of Phoenix revealed that Pope Leo XIV has appointed Monsignor Peter Dai Bui as the new auxiliary bishop. Monsignor Bui, who has served as a priest in the diocese for over 18 years, becomes the second auxiliary bishop in the diocese’s 56-year history.
Bishop-elect Bui will assist Bishop John Dolan in his new role while continuing his responsibilities as vicar for clergy. Expressing his reaction to the appointment, Bui stated, “When Cardinal Pierre called with the news, I was honestly in shock—I even forgot he couldn’t see me nodding through the phone! But beneath that shock is profound gratitude to God and a deep desire to serve His people. I just want to be a good priest, now called to serve in a new way.”
Born in January 1968, Bishop-elect Bui has a rich history of service within the Valley community. His assignments have included various parishes, such as Our Lady of Guadalupe Parish in Queen Creek from 2007 to 2008, Christ the King Parish in Mesa from 2008 to 2010, Resurrection Parish in Tempe from 2010 to 2011, and Holy Spirit Parish in Tempe from 2017 to 2022.
Bui’s diverse linguistic abilities further enhance his capability to connect with a broad range of parishioners, as he is fluent in Spanish, German, Italian, English, and Vietnamese. This skill set will be invaluable in fostering strong relationships within the multicultural community of the Diocese of Phoenix.
The diocese has expressed confidence in Bishop-elect Bui’s leadership and dedication. As he prepares for this new chapter, he noted, “I am profoundly grateful for this appointment and for the trust Pope Leo XIV has placed in me. My greatest desire is to collaborate closely with Bishop John Dolan, supporting his ministry so that together we can better serve all the faithful of this diocese. I depend on God’s grace and the prayers of His people.”
Bishop-elect Bui’s appointment marks a pivotal moment for the Diocese of Phoenix, further strengthening its commitment to serving the spiritual needs of its congregation. As he transitions into this leadership role, the diocese looks forward to the positive impact he will undoubtedly have on its community.
