The Roman Catholic Diocese of Jundiaí (Latin: Dioecesis Iundiaiensis) is a diocese located in the city of Jundiaí in the ecclesiastical province of Sorocaba in Brazil.

• 7 November 1966: Established as Diocese of Jundiaí from the Metropolitan Archdiocese of Campinas and Metropolitan Archdiocese of São Paulo

• Bishops of Jundiaí (Roman rite)
  • BIshop Arnaldo Carvalheiro Neto (15 June 2022 – present)
  • Bishop Vicente Costa (30 December 2009 – 15 June 2022)
  • Bishop Gil Antônio Moreira (7 January 2004 – 28 January 2009), appointed Archbishop of Juiz de Fora, Minas Gerais
  • Bishop Amaury Castanho (2 October 1996 – 7 January 2004)
  • Bishop Roberto Pinarello de Almeida (11 March 1982 – 2 October 1996)
  • Bishop Gabriel Paulino Bueno Couto, O. Carm. (21 November 1966 – 11 March 1982)

• Roberto Pinarello de Almeida (1980–1982)
• Amaury Castanho (1989–1996)

• Roberto Pinarello de Almeida (1971–1980), appointed Coadjutor here

• Joaquim Justino Carreira, appointed Auxiliary Bishop of São Paulo in 2005
• Joaquim Wladimir Lopes Dias, appointed Auxiliary Bishop of Vitória, Espirito Santo in 2011

• "Diocese de Jundiai - Dom Vicente Costa (5° Bispo Diocesano)". Diocese de Jundiai (in Portuguese). Archived from the original on 2013-03-17.
• "Diocese of Jundiaí, Brazil". GCatholic.org.
• "Jundiaí (Diocese) [Catholic-Hierarchy]". Catholic-Hierarchy.
• "Diocese de Jundiaí". Diocese de Jundiaí (in Portuguese). Archived from the original on 2002-06-04.

23°11′20″S 46°53′04″W / 23.1889°S 46.8844°W / -23.1889; -46.8844