James Donnelly (12 January 1823 – 28 December 1893) was Roman Catholic bishop of the Diocese of Clogher in the Archdiocese of Armagh in Ireland.
Born in Scotstown, County Monaghan, he studied in St. Patrick's College, Maynooth and was a priest in the Diocese of Clogher ordained in June 1846.
Donnelly supervised the erection of St Macartan's Cathedral in Monaghan, work started by his predecessor, Bishop Charles McNally.
Donnelly was instrumental in the formation in March 1874 of the County Monaghan Liberal Registration Association to ensure that the maximum number possible of Catholic voters were registered for elections.
Bishop Donnelly maintained very detailed records including a journal or diary which is in the possession of the Diocese of Clogher.