The Roman Catholic Diocese of Juína () is a diocese located in the city of Juína in the ecclesiastical province of Cuiabá in Brazil.
History December 23, 1997: Established as Diocese of Juína from the Diocese of Diamantino and Diocese of Ji-Paraná
Leadership Bishops of Juína (Roman rite) Bishop Franco Dalla Valle, S.D.B. (1997.12.23 – 2007.08.02) Archbishop Mílton Antônio dos Santos, S.D.B. (Apostolic Administrator 2007.08 – 2009.02.15) Bishop Neri José Tondello (2009.02.15 - present)
References GCatholic.org Catholic Hierarchy Diocese website (Portuguese)