The list of kings of the Picts is based on the Pictish Chronicle king lists. These are late documents and do not record the dates when the kings reigned. The various surviving lists disagree in places as to the names of kings, and the lengths of their reigns. A large portion of the lists, not reproduced here, belongs with the Caledonian or Irish mythology. The latter parts of the lists can largely be reconciled with other sources.
Pictish kings ruled in northern and eastern Scotland. In 843 tradition records the replacement of the Pictish kingdom by the Kingdom of Alba, although the Irish annals continue to use Picts and Fortriu for half a century after 843. The king lists are thought to have been compiled in the early 8th century, probably by 724, placing them in the reigns of the sons of Der-Ilei, Bridei and Nechtan.
Irish annals (the Annals of Ulster, Annals of Innisfallen) refer to some kings as king of Fortriu or king of Alba. The kings listed are thought to represent overkings of the Picts, at least from the time of Bridei son of Maelchon onwards. In addition to these overkings, many less powerful subject kings existed, of whom only a very few are known from the historical record.
Mythical kings of the Picts are listed in the Lebor Bretnach's account of the origins of the Cruithne. The list begins with Cruithne son of Cing, who is reported to be "father of the Picts". The account of the Pictish Chronicle then splits into four lists of names:
The dates given here are drawn from early sources, unless specifically noted otherwise. The relationships between kings are less than certain and rely on modern readings of the sources.