William Terrence McGrattan

William Terrence McGrattan (born 19 September 1956) is the eighth and current bishop of the Diocese of Calgary. He previously served as an auxiliary bishop of the Archdiocese of Toronto from 2010 to 2014 and then served as Bishop of Peterborough from 2014 to 2017.

Biography McGrattan was born in London, Ontario. He received a Bachelor of Engineering Science in chemical engineering from the University of Western Ontario, London, in 1979. In 1987, he obtained a Master of Divinity from St. Peter's Seminary. McGrattan was ordained to the priesthood on 2 May 1987 for the Diocese of London

Bishop On 6 November 2009, McGrattan was appointed by Pope Benedict XVI as one of two new auxiliary bishops for the Archdiocese of Toronto along with Vincent Nguyen. McGrattan was ordained Titular Bishop of Furnos Minor on 12 January 2010 at St. Peter's Cathedral Basilica in London by Bishop Ronald Peter Fabbro. He was appointed Bishop of Calgary, Alberta, Canada, on 4 January 2017, but continued to serve as apostolic administrator until his successor was installed. He was installed as Bishop of Calgary on 27 February 2017.

Religious timeline 6 November 2009: Appointed Auxiliary Bishop for the Archdiocese of Toronto 6 November 2009: Appointed Titular Bishop of Furnos Minor 12 January 2010: Ordained Titular Bishop of Furnos Minor 8 April 2014: Appointed Bishop of Peterborough, Ontario, Canada 4 January 2017: Appointed Bishop of Calgary, Alberta, Canada

Professional experience 1997–2009: Associate Professor, St. Peter's Seminary, London Fundamental Moral Theology, Sacramental Theology, Religious Studies 1994–1997: Assistant Professor, St. Peter's Seminary, London Fundamental Moral Theology, Sacramental Theology, Religious Studies 1992–1994: Lecturer, St. Peter's Seminary, London 1982–1987: Research Assistant, The University of Western Ontario, London 1979–1982: Chemical Engineer (P.Eng.), Polysar Limited, Sarnia