Diocese of De Aar Dioecesis De Aarensis
Location
Country	South Africa
Metropolitan	Cape Town
Statistics
Area	67,248 km2 (25,965 sq mi)
Population - Total - Catholics	(as of 2004) 164,000 5,620 (3.4%)
Information
Rite	Latin Rite
Current leadership
Pope	Francis
Bishop	Adam Musialek, S.C.I.

The Roman Catholic Diocese of De Aar (Latin: De Aaren(sis)) is a diocese located in the city of De Aar (Pixley ka Seme District Municipality) in the ecclesiastical province of Cape Town in South Africa.

History

• March 24, 1953: Established as Apostolic Prefecture of De Aar from Diocese of Aliwal
• April 13, 1967: Promoted as Diocese of De Aar

Special churches

• The cathedral is Cathedral of Our Lady of the Assumption in De Aar.

Leadership

• Prefect Apostolic of De Aar (Roman rite)
  • Fr. Louis Dettmer (1953.03.24 – 1967.04.13)
• Bishops of De Aar (Roman rite)
  • Bishop Joseph Anthony De Palma, S.C.I. (1967.04.13 – 1987.11.18)
  • Bishop Joseph James Potocnak, S.C.I. (1992.01.23 - 2009.07.17)
  • Bishop Adam Leszek Musialek, S.C.I. (since 2009.07.17 - )