Diocese of Castanhal

The Roman Catholic Diocese of Castanhal () is a diocese located in the city of Castanhal in the ecclesiastical province of Belém do Pará in Brazil.

History December 29, 2004: Established as Diocese of Castanhal from the Metropolitan Archdiocese of Belém do Pará and Diocese of Bragança do Pará

Leadership Bishops of Castanhal (Roman rite) Bishop Carlos Verzeletti (29 December 2004 – 24 March 2026) Bishop Manoel de Oliveira Soares Filho (24 March 2026 – present)