The Roman Catholic Diocese of Tanga () is a diocese located in the city of Tanga in the ecclesiastical province of Dar-es-Salaam in Tanzania.

History April 18, 1950: Established as Apostolic Prefecture of Tanga from the Apostolic Vicariate of Kilima-Njaro February 24, 1958: Promoted as Diocese of Tanga

Bishops Prefect Apostolic of Tanga (Roman rite) Fr. Eugène Cornelius Arthurs, I.C. (1950.06.09 – 1958.02.24 see below) Bishops of Tanga (Roman rite) Bishop Eugène Cornelius Arthurs, I.C. (see above 1958.02.24 – 1969.12.15) Bishop Maurus Gervase Komba (1969.12.15 – 1988.01.18) Bishop Telesphore Richard Mkude (1988.01.18 – 1993.04.05), appointed Bishop of Morogoro Bishop Anthony Mathias Banzi (1994.06.10 – 2020.12.20) Thomas John Kiangio (Since 7 June 2023)

Other priest of this diocese who became bishop Titus Joseph Mdoe, appointed auxiliary bishop of Dar-es-Salaam in 2013

See also Roman Catholicism in Tanzania

Sources GCatholic.org Catholic Hierarchy