The Scots Peerage is a nine-volume book series of the Scottish nobility compiled and edited by Sir James Balfour Paul, published in Edinburgh from 1904 to 1914.

[3] In the preface to the first volume, Balfour Paul writes kindly of his predecessors' efforts: The works both of Douglas and Wood were for their time admirable examples of ability and research.

With the exception of the Acts of Parliament in an abridged and mutilated form, absolutely nothing in the way of records had in Douglas' days been printed, and references and authorities had to be patiently sought with much expenditure of time and trouble in the badly arranged, insufficiently housed, and wholly unindexed public documents.

The natural consequence was that while their information, so far as it dealt with their own times or the generation immediately preceding, was on the whole commendably accurate, the particulars regarding the earlier centuries were scanty and too frequently untrustworthy.

[3]The Oxford Dictionary of National Biography stated that The Scots Peerage was Paul's chief and most lasting contribution to Scottish heraldry: It was fortunate that a work of this magnitude was completed on the eve of the First World War.