Ordinaries

• Jan Cornelius van Sambeek, M. Afr. † (10 May 1946 Appointed - 22 Nov 1957 Resigned)

• James C. Holmes-Siedle, M. Afr. † (5 Aug 1958 Appointed - 15 Dec 1969 Resigned)

• Alphonse Daniel Nsabi † (15 Dec 1969 Appointed - 16 Aug 1989 Died)

• Paul Runangaza Ruzoka (10 nov 1989 Appointed – 25 Nov 2006 Appointed, Archbishop of Tabora)

• Protase Rugambwa (18 Jan 2008 Appointed – 26 Jan 2012 Appointed, Adjunct Secretary of the Congregation for the Evangelization of Peoples)

• Joseph Roman Mlola, ALCP/OSS (10 July 2014 Appointed - )