The Liber Exoniensis or Exon Domesday is the oldest of the three manuscripts originating with the Domesday Survey of 1086, covering south-west England.

It contains a variety of administrative materials concerning the counties of Cornwall, Devon, Dorset, Somerset and Wiltshire.

They were rearranged and rebound in 1816, when the Record Commission edition was published.

There was no "original order" of the quires, which were in effect separate working documents.

Five principal types of record can be distinguished:[1]