The Roman Catholic Diocese of Ngozi (Latin: Ngozien(sis)) is a diocese located in the city of Ngozi in the ecclesiastical province of Gitega in Burundi.

• July 14, 1949: Established as Apostolic Vicariate of Ngozi from the Apostolic Vicariate of Urundi
• November 10, 1959: Promoted as Diocese of Ngozi

The Cathedral is the Our Lady of Fatima Cathedral in Ngozi.

• Bishops of Ngozi (Roman rite), below
  • Bishop Georges Bizimana (since December 17, 2019)
  • Bishop Gervais Banshimiyubusa (December 14, 2002 – March 24, 2018), appointed Archbishop of Bujumbura
  • Bishop Stanislas Kaburungu (September 5, 1968 – December 14, 2002)
  • Bishop André Makarakiza, M. Afr. (August 21, 1961 – September 5, 1968), appointed Archbishop of Gitega
  • Bishop Joseph Martin, M. Afr. (November 10, 1959 – June 6, 1961); see below
• Vicar Apostolic of Ngozi (Roman rite), below
  • Bishop Joseph Martin, M. Afr. (July 14, 1949 – November 10, 1959); see above

• Gervais Banshimiyubusa (2000-2002)

• Roman Catholicism in Burundi

• GCatholic.org
• Catholic Hierarchy ^{[self-published]}