The Complete Peerage (full title: The Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom Extant, Extinct, or Dormant; first edition by George Edward Cokayne, Clarenceux King of Arms; 2nd edition revised by the Hon. Vicary Gibbs et al.) is a comprehensive and magisterial work on the titled aristocracy of the British Isles.
The Complete Peerage was first published in eight volumes between 1887 and 1898 by George Edward Cokayne (G. E. C.). This version was effectively replaced by a new and enlarged edition between 1910 and 1959 edited successively by Vicary Gibbs (Cokayne's nephew), H. A. Doubleday, Duncan Warrand, Lord Howard de Walden, Geoffrey H. White and R. S. Lea. The revised edition (published by the St. Catherine Press Limited), took the form of twelve volumes with volume twelve being issued in two parts. Volume thirteen was issued in 1940, not as part of the alphabetical sequence, but as a supplement covering creations and promotions within the peerage between 1900 and 1938.
It has subsequently been reprinted in a number of formats, most notably by Alan Sutton Publishers who reduced it in size to six volumes in a photographically reduced format (this contains four page images on each smaller page). It is also available on CD. A further reprint in six volumes appeared in 2000, together with Volume 14, which is an appendix, updating briefly from original publication (1910–1938) to 1995.
All volumes edited by George Cokayne.
Volumes 1–5 have the title Complete peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, extant, extinct or dormant, and volumes 6–13: The complete peerage; or, A history of the House of lords and all its members from the earliest times.