The Roman Catholic Diocese of Barretos (Latin: Dioecesis Barretensis) is a diocese located in the city of Barretos in the ecclesiastical province of Ribeirão Preto in Brazil.

• 14 April 1973: Established as Diocese of Barretos from the Diocese of Jaboticabal and Diocese of Rio Preto

• Bishops of Barretos (Latin Rite)
  • José de Matos Pereira, C.M.F. (1973.04.25 – 1976.08.12)
  • Antônio Maria Mucciolo (1977.05.26 – 1989.05.30), appointed Archbishop of Botucatu, São Paulo
  • Pedro Fré, C.Ss.R. (1989.12.02 – 2000.12.20)
  • Antônio Gaspar (2000.12.20 – 2008.01.09)
  • Edmilson Amador Caetano, O. Cist. (2008.01.09 – 2014.01.29), appointed Bishop of Guarulhos, São Paulo
  • Milton Kenan Júnior (2014.11.05 - ...)

• GCatholic.org
• Catholic Hierarchy

20°33′28″S 48°34′04″W / 20.5578°S 48.5679°W / -20.5578; -48.5679