The Roman Catholic Diocese of Januária (Latin: Dioecesis Ianuariensis) is a diocese located in the city of Januária in the ecclesiastical province of Montes Claros in Brazil.

• 15 June 1957: Established as Diocese of Januária from the Diocese of Montes Claros and Territorial Prelature of Paracatu

• Bishops of Januária (Roman rite)
  • Daniel Tavares Baeta Neves † (16 May 1958 - 1 June 1962) Resigned
  • João Batista Przyklenk, M.S.F. † (1 June 1962 - 1 March 1976) appointed, Vicar Apostolic of Tromsø
  • Anselmo Müller, M.S.F. † (25 April 1984 - 12 November 2008) Retired
  • José Moreira da Silva (12 Nov 2008–present)

• Giga-Catholic Information
• Catholic Hierarchy

15°29′03″S 44°21′34″W / 15.4843°S 44.3594°W / -15.4843; -44.3594