Peritia is an annual peer-reviewed academic journal covering Celtic and Insular medieval studies in the context of the European Middle Ages and European medieval studies in general.

Founded and edited by Donnchadh Ó Corráin of University College Cork since the early 1980s[note 1] until 2016, Ó Corráin passed on this role to Dáibhí Ó Cróinín (NUI Galway) and Elva Johnston (University College Dublin).

[1] Ó Cróinín's work had featured in the first edition.

[2] Patrick Wormald also noted two "firsts" in English language scholarship in his review of that edition: Jonas's great life of Columbanus being given its first "sustained treatment" in the language (by Ian N. Wood) and a description of "the beginnings of hagiographical writing in Iceland".

[2] The Irish Times has credited the journal with featuring the work of scholars who might elsewhere have been neglected.