The Prophecy of Berchán is a relatively long historical poem written in the Middle Irish language.
The text is preserved in the Royal Irish Academy as MS 679 (23/G/4), with a few early modern copies.
Part one consists of a history of Berchán's own monastery, a recount of Viking attacks, and descriptions of the reigns of nineteen Irish kings.
Part two (stanzas 97–206) is presented as an anonymous prophecy given around the death of Saint Patrick in the 5th century, prophesying the life of Columba and King Áedán mac Gabráin, and 24 Scottish kings, from Cináed mac Ailpín (d. 858) to Domnall Bán (d. 1097).
The poem is very indirect in its identification of Scottish kings, and uses many obscure poetic images and similes.