The Diocese of Noba () is a former Christian diocese located in present-day Algeria. It is currently a Catholic titular see.

In antiquity, the diocese was centered on the Roman town of Noba, in the province of Mauretania Caesariensis. The Roman town is now lost to history.Titular Episcopal See of Noba, at GCatholic.org.

We know of various bishops of the diocese. Mesnage,J. Mesnage, L'Afrique chrétienne, (Paris, 1912), p. 497 unlike Morcelli, attributes only two bishops to the town, mentioned in 484; While Morcelli a third, Felix, though he could also belong to another town of this name. Stefano Antonio Morcelli, Africa christiana, Volume I, (Brescia, 1816), pp. 245–246

Today Noba survives as a titular bishopric. The current bishop is Gilson Andrade da Silva, auxiliary bishop of San Salvador of Bahia.David Cheney, Diocesi di Noba at Catholic-Hierarchy.org

Known bishops Felice (fl.411) Verecondo e Miggino † (fl.484) William Joseph Trudel (1933–1968) Eduardo Koaik (1973–1979) Hubert Barbier (1980–1984) Romeo Panciroli (1984–2006) Fernando Chomalí (2006–2009)Le Petit Episcopologe, Issue 207, Number 17,149. Gilson Andrade da Silva, dal 27 luglio 2011

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