The Diocese of Raphoe (/rəˈfoʊ/ rə-FOH; Latin: Dioecesis Rapotensis; Irish: Deoise Ráth Bhoth) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in County Donegal in Ulster, Ireland.

It is one of eight suffragan dioceses in the inter-Irish primatial ecclesiastical province of the metropolitan Archdiocese of Armagh.

[1] On 9 June 2017, Alan McGuckian was appointed Bishop of Raphoe and was ordained to the episcopate on 5 August 2017.

As per 2014 it pastorally served 82,600 Catholics (91.1% of 90,700 total) on 4,030 km² (1555 sq.

It is located beside the Parochial House, near the Cathedral of St Eunan and St Columba which is dedicated to the joint patrons of the diocese – Saints Eunan (also known as Adomnán) and Columba (also known as Columcille).