The Episcopal Assembly is one of thirteen bishops' assemblies that have been established in different geographical regions throughout the world. It is made up of all the active, canonical Orthodox bishops with churches in Britain and Ireland.

The Assembly was established in accordance with the Decision of the 4th Pre-Conciliar Pan-Orthodox Conference, held in Chambésy, Switzerland in 2009, at which representatives from all the universally-recognized autocephalous Orthodox churches met and considered the situation of the Orthodox communities in the Diaspora, that is, in countries outside the canonical territories of the established Local Orthodox Churches. The Assemblies are designed to promote cooperation among the Churches and to prepare the way for the resolution of the canonical anomalies associated with overlapping jurisdictions.