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

• 12 December 1959: Established as Diocese of Jales from the [[Diocese of Rio Preto|Diocese of Rio Preto. ]]

• Bishops of Jales (Roman rite), in reverse chronological order
  • Bishop José Reginaldo Andrietta (2015.10.21 - present)
  • Bishop Luiz Demétrio Valentini (1982.06.08 – 2015.10.21)
  • Bishop Luíz Eugênio Pérez (1970.03.09 – 1981.06.07)
  • Bishop Arturo Gerrit João Hermanus Maria Horsthuis, A.A. (1960.02.13 – 1968.11.07)

• GCatholic.org
• Catholic Hierarchy
• Diocese website (Portuguese)

20°16′08″S 50°32′54″W / 20.2688°S 50.5482°W / -20.2688; -50.5482