The Roman Catholic Diocese of Malakal (Latin: Malakalen(sis)) is a diocese in Malakal in the ecclesiastical province of Juba in South Sudan.

• January 10, 1933: Established as Mission “sui iuris” of Kodok from Apostolic Vicariate of Khartoum
• August 4, 1938: Promoted as Apostolic Prefecture of Kodok
• July 14, 1949: Renamed as Apostolic Prefecture of Malakal
• December 12, 1974: Promoted as Diocese of Malakal

• Ecclesiastical Superior of Kodok (Roman rite)
  • Fr. Matteo Michelon, M.C.C.I. (1933.07.08 – 1935)
• Prefects Apostolic of Kodok (Roman rite)
  • Fr. John Wall, M.H.M. (1938.08.12 – 1945)
  • Fr. John Hart, M.H.M. (1947.06.13 – 1949.07.14 see below)
• Prefects Apostolic of Malakal (Roman rite)
  • Fr. John Hart, M.H.M. (see above 1949.07.14 – 1962)
  • Fr. Herman Gerard Te Riele, M.H.M. (1962.05.29 – 1967)
• Prefects Apostolic of Malakal (Roman rite)
  • Fr. Pio Yukwan Deng (1967.08.19 – 1974.12.12 see below)
• Bishops of Malakal (Roman rite)
  • Bishop Pio Yukwan Deng (see above 1974.12.12 – 1976.12.03)
  • Bishop Vincent Mojwok Nyiker (1979.03.15 – 2009.05.16)
  • Msgr. Roko Taban Mousa (Apostolic Administrator starting 2009)
  • Bishop Stephen Nyodho Ador Majwok (2019.05.23 -)

• Roman Catholicism in South Sudan
• Anglican Diocese of Malakal

• GCatholic.org
• Diocese of Malakal website

9°32′00″N 31°39′00″E / 9.533333°N 31.65°E / 9.533333; 31.65