The Roman Catholic Diocese of Alagoinhas (Latin: Dioecesis Alacunensis) is a diocese located in the city of Alagoinhas in the ecclesiastical province of São Salvador da Bahia in Brazil.

• 28 October 1974: Established as Diocese of Alagoinhas from the Metropolitan Archdiocese of São Salvador da Bahia

• Bishops of Alagoinhas (Latin Rite)
  • José Floriberto Cornelis, O.S.B. (13 Nov 1974 – 24 May 1986), Archbishop (personal title)
  • Jaime Mota de Farias (7 Nov 1986 – 24 Apr 2002)
  • Paulo Romeu Dantas Bastos (24 Apr 2002 – 13 Jan 2021)
  • Francisco de Oliveira Vidal (27 Sep 2022 – present)

• GCatholic.org
• Catholic Hierarchy

12°08′20″S 38°25′31″W / 12.1388°S 38.4254°W / -12.1388; -38.4254