The Roman Catholic Diocese of Joaçaba () is located in the ecclesiastical province of Chapecó, in Santa Catarina state, Brazil. The seat of the diocese is the Cathedral of St. Therese of the Child of Jesus, Joaçaba. It is bordered by the Catarinense dioceses of Chapecó, Caçador and Lages, as well as the dioceses of Erexim and Vacaria on the south and the diocese of Palmas–Francisco Beltrão on the north.
History 12 June 1975: Established from the dioceses of Caçador, Chapecó and Lages.
Bishops Bishops of Joaçaba (Roman rite) Mario Marquez, OFMCap (2010.12.22 – present); formerly Auxiliary bishop of the Diocese of Vitoria, Brazil Walmir Alberto Valle, IMC (2003.04.09 – 2010.04.14) Osório Bebber, OFMCap (1999.03.17 – 2003.04.09) Henrique Müller, OFM (1975.06.27 – 1999.03.17)
Coadjutor bishop Walmir Alberto Valle, IMC (2002-2003)
References GCatholic.org Catholic Hierarchy