The Roman Catholic Diocese of Garissa (Latin: Garissaën[sis]) is a diocese located in the city of Garissa. It is administered under the ecclesiastical province of Mombasa in Kenya.

• December 9, 1976: Established as Apostolic Prefecture of Garissa from the Diocese of Mombasa and Diocese of Meru
• February 3, 1984: Promoted as Diocese of Garissa

• Prefects Apostolic of Garissa (Roman rite)
  • Fr. Leo White, OFMCap (December 9, 1976 – 1984)
• Bishops of Garissa (Roman rite)
  • Bishop Paul Darmanin, OFMCap (February 3, 1984 - 9 Dec 2015)
  • Bishop Joseph Alessandro, OFMCap (9 Dec 2015 - 17 Feb 2022)
  • Bishop George Muthaka, OFMCap (17 Feb 2022–present)

• Joseph Alessandro, OFMCap (2012-2015)

• Roman Catholicism in Kenya

• GCatholic.org
• Catholic Hierarchy
• Kenya Conference of Catholic Bishops [1]
• Archdiocese of Mombasa [2]

0°27′07″S 39°38′42″E / 0.4519°S 39.6449°E / -0.4519; 39.6449