Within the Archdiocese of Toronto, you will find a family of faith that is alive and at work in our community. Comprised of nearly 2 million Catholics in the Greater Toronto Area, the Archdiocese is led by His Eminence, Thomas Cardinal Collins, and assisted by Auxiliary Bishops, Most Reverend John A. Boissonneau, Most Reverend Robert Kasun CSB, Most Reverend Vincent Nguyen, and Most Reverend Ivan Camilleri. First separated from the Archdiocese of Kingston, the Diocese of Toronto was erected on December 17, 1841. Less than 30 years later, after rapid expansion, on March 18, 1870, the Diocese became the Archdiocese of Toronto. We celebrate Mass for 36 ethnic and linguistic communities every week making the Archdiocese of Toronto one of the most ethnically diverse Catholic dioceses in the world. Together with our clergy, parishes, volunteers, Archdiocesan employees and the entire Catholic community, we are a family living out our faith, ready to act, serve and grow together in God’s love. Learn more about us on our website: www.archtoronto.org