The Decantae were a people of ancient Britain, known only from a single mention of them by the geographer Ptolemy c. 150. From his general description and the approximate locations of their neighbors, their territory was along the western coast of the Moray Firth, in the area of the Cromarty Firth. Ptolemy does not provide them with a town or principal place.
- Rivet, A.L.F.; Smith, Colin (1979). The Place-Names of Roman Britain. London. p. 330.
- Ptolemy (150), Thayer, Bill, ed., Geographia, Book 2, Chapter 2: Albion island of Britannia, LacusCurtius website at the University of Chicago (published 2008), retrieved 2008-04-26