The Book of the Dean of Lismore () is a Scottish manuscript, compiled in eastern Perthshire in the first half of the 16th century. The chief compiler, after whom it is named, was James MacGregor (Seumas MacGriogair), vicar of Fortingall and titular Dean of Lismore Cathedral, although there are other probable scribes, including his brother DonnchadhThe Edinburgh Companion to the Gaelic Language, Edinburgh University Press, 2010, p. 14 and William Drummond (Uileam Druimeanach), curate of Fortingall. It is unrelated to the similarly named Book of Lismore, an Irish manuscript from the early 15th century.
