The diocese was erected on 25 May1947 from the Archdiocese of Glasgow and part of the Diocese of Galloway. The current bishop is the Right Reverend Joseph Devine, the 4th Bishop of Motherwell.
List of the Bishops of the Roman Catholic Diocese of Motherwell, Scotland
(Any dates appearing in italics indicate de facto continuation of office. The start date of tenure below is the date of appointment or succession. Where known, the date of installation and ordination as bishop are listed in the notes together with the post held prior to appointment.)