ROMAN CATHOLIC DIOCESE OF CALGARY
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Our History

Established in 1912, our Diocese stretches 110,000 square kilometers across Southern Alberta. Comprised of over 400,000 Catholics, 68 parishes and 11 missions, the Diocese is now led by Bishop William T. McGrattan. 

The Roman Catholic Diocese of Calgary is marked by faith, growth, immigration, adaptation and hope. 
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Spanning almost 100 years, the joys and struggles of all of its people give the present its character and witness to the Catholic faith. The Diocese has developed from the sparsely populated rural community served by a few missionary priests to a vibrant, multicultural community encompassing rural hamlets and high-rise city condos. In 2012, the Diocese of Calgary celebrated 100 years of existence in Southern Alberta. ​

Past Bishops

  • Most Rev. Frederick B. Henry: Seventh Bishop of Calgary. 1998-2017.
  • Most Rev. Paul J. O'Byrne: Sixth Bishop of Calgary. 1968 - 1998.
  • Most Rev. Francis J. Klein: Fifth Bishop of Calgary. 1967 – Early 1968.
  • Most Rev. Francis P. Carroll: Fourth Bishop of Calgary. 1935 – 1967.
    ​Former rector of St. Augustine's Seminary.
  • Most Rev. Peter J Monahan: Third Bishop of Calgary. 1932 – 1935.
    Later Bishop of Regina.
  • Most Rev. John T Kidd: Second Bishop of Calgary, 1925 – 1931.
    The former rector of St. Augustine's Seminary. Later Bishop of London.
  • Most Rev. John T McNally: First Bishop of Calgary, 1913 – 1924.
    Later Bishop of Hamilton and Archbishop of Halifax.
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Catholic Pastoral Centre  | 120 - 17th Ave SW, Calgary, AB  T2S 2T2 | ​Phone: 403-218-5500 | communications@calgarydiocese.ca
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10790-9939-RR0076​. Donate Now.
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