The Roman Catholic Diocese of Iringa () is a diocese located in Iringa in the ecclesiastical province of Mbeya in Tanzania.

History March 3, 1922: Established as Apostolic Prefecture of Iringa from the Apostolic Vicariate of Dar-es-Salaam January 8, 1948: Promoted as Apostolic Vicariate of Iringa March 25, 1953: Promoted as Diocese of Iringa December 21, 2018: Changed metropolia from Songea to Mbeya

Leadership Prefects Apostolic of Iringa (Roman rite) Fr. Francesco Cagliero, I.C.M. (1922.05.10 – 1935) Fr. Attilio Beltramino, I.C.M. (1936.02.18 – 1948.01.08 see below) Vicar Apostolic of Iringa (Roman rite) Bishop Attilio Beltramino, I.C.M. (see above 1948.01.08 – 1953.03.25 see below) Bishops of Iringa (Roman rite) Bishop Attilio Beltramino, I.C.M. (see above 1953.03.25 – 1965.10.03) Bishop Mario Epifanio Abdallah Mgulunde (1969.10.23 – 1985.03.09), appointed Archbishop of Tabora Bishop Norbert Wendelin Mtega (1985.10.28 – 1992.07.06), appointed Archbishop of Songea Bishop Tarcisius Ngalalekumtwa (21 November 1992 - 28 January 2025) Bishop Romanus Elamu Mihali (since 28 January 2025)

See also Roman Catholicism in Tanzania

Sources GCatholic.org Catholic Hierarchy