The Diocese of Hamilton was erected as a Diocese February 29, 1856 by a division of the Diocese of Toronto. It comprises the Counties of Brant, Bruce, Grey, Halton, Waterloo, Wellington, Wentworth and four Townships in the County of Dufferin.
  • Website of the Diocese of Hamilton

  • Most Rev. Douglas Crosby, O.M.I.
    Bishop of Hamilton
    700 King St. West
    Hamilton, Ontario L8P 1C7
    Phone: (905) 528-7988
    Fax: (905) 528-1088

    Most Rev. Daniel Miehm
    Auxiliary Bishop of Hamilton
    700 King St. West
    Hamilton, Ontario L8P 1C7
    Phone: (905) 528-7988
    Fax: (905) 528-1088

    Most Rev. A.F. Tonnos, D.D.
    Bishop Emeritus of Hamilton
    700 King St. West
    Hamilton , Ontario L8P 1C7
    Phone: (905) 528-7988
    Fax: (905) 528-1088

    Most Rev. M.F. Ustrzycki,D.D.
    Auxiliary Bishop Emeritus of Hamilton
    Our Lady Immaculate Church
    28 Norfolk Street
    Guelph, Ontario N1H 4H8
    Phone: (519) 822-4488
    Fax: (519) 822-5488