The Archives of the Catholic Church in Scotland are responsible for the maintaining the diverse manuscript collections relating to the Catholic Church in Scotland.

The Archives are divided between Columba House (the national repository) in Edinburgh and the individual dioceses. The division is different in almost each case, but generally, the Dioceses of Aberdeen, Argyll and the Isles, Dunkeld, Galloway, Motherwell and St Andrews and Edinburgh have located the bulk of their historical records at Columba House, leaving more current records within the Diocesan Offices, whilst the Dioceses of Glasgow and Paisley maintain their own Archives. The Scottish Catholic Archives and the Archdiocese of Glasgow Archives are participating archives in the Scottish Archive Network (SCAN).

The main body of the collection dates from before 1878, when the Hierarchy was restored in Scotland, but added to this are the records of the Dioceses of Argyll and the Isles; Dunkeld; St Andrews and Edinburgh; Galloway and Motherwell. The records of the Scots Colleges at home: Blairs, Scalan, Aquhorties; and abroad: Paris, Douai, Madrid and Rome are also a valuable part of its holdings.

Ongoing conversion of the catalogues to electronic format is taking place, and these catalogues are being added to the website.

The Scottish Catholic Archives does not have sufficient resources to offer a family history research service, however every attempt will be made to answer specific enquires about material in the collections.