In 1847, the Scottish Episcopal Diocese of Argyll and The Isles was officially established with Alexander Ewing as the first Bishop.

Keith Riglin, Vice Dean[1] of King's College London, was elected by an Electoral Synod on 30 January 2021;[2] his consecration was on 1 May 2021.

[3] Bishop Keith died on 24 September 2023 leaving the diocesan seat vacant until the election and installation of David Railton in 2024.

On 24 November 2017 the congregation of Christ Church, Harris, a Scottish Episcopal church in the Western Isles, announced that they could no longer remain under the oversight of their local bishop, Kevin Pearson, then-Bishop of Argyll and The Isles, owing to his support of the SEC's approval of same-sex marriage.

They would instead be receiving the episcopal ministry of Andy Lines, the Missionary Bishop to Europe of the Anglican Church in North America.