Key Takeaways
- Pope Leo XIV has appointed Reverend Monsignor Peter Dai Bui as Auxiliary Bishop of Phoenix.
- Monsignor Bui is a priest of the Diocese of Phoenix and currently serves as the diocese’s Vicar for Clergy.
- He was born on January 11, 1970, in Phu Quoc Island, Vietnam, and was ordained to the priesthood on December 24, 2003.
- Bishop-elect Bui has served in various pastoral assignments in the Diocese of Phoenix and has also served as an official on the Pontifical Council Cor Unum.
- He speaks multiple languages, including English, Vietnamese, Spanish, Italian, and German.
Introduction to the Appointment
The Catholic Church has announced the appointment of Reverend Monsignor Peter Dai Bui as the new Auxiliary Bishop of Phoenix. This appointment was made by Pope Leo XIV and was publicized in Washington, D.C. on December 19, 2025, by Cardinal Christophe Pierre, the apostolic nuncio to the United States. Monsignor Bui is a priest of the Diocese of Phoenix and has been serving as the diocese’s Vicar for Clergy. This appointment is a significant development for the Catholic Church in the United States, and it is expected to have a positive impact on the community in Phoenix.
Biography of Bishop-Elect Bui
Monsignor Bui was born on January 11, 1970, in Phu Quoc Island, Vietnam. He began his journey to the priesthood by studying at the Legion of Christ Minor Seminary and later entered the Legion of Christ Novitiate in Cheshire, Connecticut in 1989. He made his First Profession in 1991 and went on to attend the Pontifical Athenaeum in Rome, where he earned degrees in philosophy and theology, as well as a licentiate in philosophy in 2003. Monsignor Bui was ordained to the priesthood on December 24, 2003, for the Legionaries of Christ, a religious order. His educational background and training have prepared him well for his new role as Auxiliary Bishop of Phoenix.
Pastoral Assignments and Experience
Bishop-elect Bui has had a diverse range of pastoral assignments and experiences throughout his career. He served as chaplain of a private Catholic school in Caracas, Venezuela, where he organized mission trips to Amazonia and Medellin, Colombia from 2003 to 2006. He was incardinated into the Diocese of Phoenix in October 2009 and has since served in various roles, including associate pastor of Our Lady of Guadalupe parish in Queen Creek and associate pastor at Christ the King parish in Mesa. He has also served as pastor at Resurrection parish in Tempe and Holy Spirit parish in Tempe. In addition to his pastoral assignments, Bishop-elect Bui has also served as an official on the Pontifical Council Cor Unum from 2011 to 2016. This experience has given him a unique understanding of the inner workings of the Catholic Church and has prepared him for his new role.
Awards and Recognition
Monsignor Bui has received several awards and recognition for his service to the Catholic Church. On December 16, 2014, he was named a Chaplain to His Holiness, with the title of Monsignor. This is a significant honor and recognizes his dedication and commitment to the Church. Since 2022, Monsignor Bui has served as the Vicar for Clergy for the Diocese of Phoenix, a role that has given him a deep understanding of the needs and challenges of the clergy in the diocese. His language skills, which include English, Vietnamese, Spanish, Italian, and German, will also be an asset in his new role as Auxiliary Bishop.
Conclusion and Future Outlook
The appointment of Reverend Monsignor Peter Dai Bui as Auxiliary Bishop of Phoenix is a significant development for the Catholic Church in the United States. With his diverse range of experiences and qualifications, Bishop-elect Bui is well-equipped to serve the community in Phoenix. His commitment to the Church and his dedication to his work are evident in his many accomplishments, and it is expected that he will make a positive impact in his new role. As the Catholic Church continues to evolve and grow, the appointment of Bishop-elect Bui is a reminder of the importance of leadership and service in the Church. His appointment is a cause for celebration, and it is expected that he will be a valuable asset to the Diocese of Phoenix and the wider Catholic community.
