The Roman Catholic Diocese of Nova Friburgo () is a diocese located in the city of Nova Friburgo in the ecclesiastical province of Niterói in Brazil.
History March 26, 1960: Established as Diocese of Nova Friburgo from the Diocese of Barra do Piraí and Diocese of Petrópolis
Leadership Bishops of Nova Friburgo (Latin Church) Clemente Isnard (23 Apr 1960 – 17 Jul 1992) Alano Maria Pena (24 Nov 1993 – 24 Sep 2003), appointed Archbishop of Niterói, Rio de Janeiro Rafael Llano Cifuentes (12 May 2004 – 20 Jan 2010) Edney Gouvea Mattoso (20 Jan 2010 – 22 Jan 2020); formerly an Auxiliary Bishop of the Roman Catholic Archdiocese of Sao Sebastiao do Rio de Janeiro, Brazil Luiz Antônio Lopes Ricci (6 May 2020–???); formerly Auxiliary Bishop of the Archdiocese of Niteroi, Brazil. Pedro Cunha Cruz (02 July 2025 - present) formerly Bishop of the Diocese of Campanha, Brazil.
References GCatholic.org Catholic Hierarchy Diocese website (Portuguese)