John Mary Dunne (8 June 1845 in Tooreigh, Mitchelstown, County Cork, Ireland – 22 August 1919 in Bathurst, New South Wales), an Australian suffragan bishop, was the third Bishop of the Roman Catholic Diocese of Bathurst, New South Wales.
Born to Michael Dunne, a farmer, and his wife Mary, née Hennessy, Dunne was educated by the Christian Brothers at Mitchelstown, and Mount Melleray College, and studied for the priesthood at All Hallows College, Drumcondra, Dublin, where he was ordained priest on 24 June 1870 and arrived in Sydney the following year, before transferring to the Bathurst diocese.
Widely known as the 'Builder Bishop', Dunne is credited with ensuring that every parish had a church, school, presbytery and convent.
As a prudent and skilful administrator and a near-genius at raising money, he made the 'voluntary system' work in his diocese.
[1] Dunne died of cancer at Bishop's House on 22 August 1919 and was buried in the Catholic section of Bathurst cemetery.