The Roman Catholic Diocese of Mbulu () is a diocese located in the town of Mbulu in the ecclesiastical province of Arusha in Tanzania. The seat of the Bishop is the Cathedral Church of the Virgin Mary. As of 2025, Catholic population has risen to make up 55%.

History April 14, 1943: Established as Apostolic Prefecture of Mbulu from the Apostolic Prefecture of Dodoma and the Apostolic Vicariate of Kilima-Njaro January 10, 1952: Promoted as Apostolic Vicariate of Mbulu March 25, 1953: Promoted as Diocese of Mbulu

Leadership Prefect Apostolic of Mbulu (Roman rite) Fr. Patrick Winters, S.A.C. (1944.01.28 – 1952.01.10 see below) Vicar Apostolic of Mbulu (Roman rite) Patrick Winters, S.A.C. (see above 1952.01.10 – 1953.03.25 see below) Bishops of Mbulu (Roman rite) Patrick Winters, S.A.C. (see above 1953.03.25 – 1971.07.03) Nicodemus Atle Basili Hhando (1971.07.03 – 1997.03.07) Jude Thaddaeus Ruwa'ichi, O.F.M. Cap. (1999.02.09 – 2005.01.15), appointed Bishop of Dodoma Beatus Kinyaiya, O.F.M. Cap. (2006.04.22 - 2014.06.11), appointed Archbishop of Dodoma Anthony Gaspar Lagwen (since 2018.05.22)

See also Roman Catholicism in Tanzania

References

Sources GCatholic.org Catholic Hierarchy