The Roman Catholic Diocese of Aizawl (Latin: Aizavlen(sis)) is a diocese located in the city of Aizawl in the ecclesiastical province of Shillong in India.

• 17 January 1952: Established as Apostolic Prefecture of Haflong from the Metropolitan Archdiocese of Dacca
• 26 June 1969: Promoted as Diocese of Silchar
  • 11 January 1996: Renamed as Diocese of Aizawl

• Bishops of Aizawl (Latin Rite)
  • Bishop Stephen Rotluanga, C.S.C. (2 October 2001 – present)
  • Apostolic Administrator - Bishop Lumen Monteiro (2000-2001)
  • Bishop Denzil Reginald D’Souza (11 January 1996 – 18 October 2000)
• Bishops of Silchar (Latin Rite)
  • Bishop Denzil Reginald D’Souza (26 June 1969 – 11 January 1996)
• Prefect Apostolic of Haflong (Roman Rite)
  • Fr. George Daniel Breen, C.S.C. (21 March 1952 – 1969)

• List of Christian denominations in North East India
• List of Roman Catholic dioceses in India

• GCatholic.org
• Catholic Hierarchy

9°29′47″N 76°19′44″E / 9.4965°N 76.3289°E / 9.4965; 76.3289