The Roman Catholic Diocese of Tambacounda (Latin: Tambacundan(us), French: Diocèse catholique romain de Tambacounda) is a diocese located in the city of Tambacounda in the ecclesiastical province of Dakar in Senegal.

• August 13, 1970: Established as Apostolic Prefecture of Tambacounda from the Diocese of Kaolack and Diocese of Saint-Louis du Sénégal
• April 17, 1989: Promoted as Diocese of Tambacounda

• The cathedral is Cathédrale Marie Reine de l’Univers in Tambacounda, which is located in the Medina Coura neighborhood of the town.

• Prefect Apostolic of Tambacounda (Roman rite)
  • Fr. Clément Cailleau, C.S.Sp. (1970.08.13 – 1986.04.24)
• Bishops of Tambacounda (Roman rite)
  • Bishop Jean-Noël Diouf (1989.04.17 – 2017.08.05)
  • Bishop Paul Abel Mamba Diatta (2021.11.04 – ...)

• Roman Catholicism in Senegal

• GCatholic.org
• Catholic Hierarchy ^{[self-published]}

13°45′45″N 13°40′27″W / 13.7626°N 13.6742°W / 13.7626; -13.6742