The Bishop of Argyll or Bishop of Lismore was the ecclesiastical head of the Diocese of Argyll, one of Scotland's 13 medieval bishoprics. It was created in 1200, when the western half of the territory of the Bishopric of Dunkeld was formed into the new diocese. The bishops were based at Lismore. The Bishopric of Argyll, like other Scottish bishoprics, passed into the keeping of the Scottish Episcopal Church after the Scottish Reformation.