Keenan is an Irish surname meaning 'ancient, distant' in the Irish language. It is derived from Ó Cianáin 'descendant of Cianán' (a diminutive of Cian). The Ó Cianáin clan were hereditary historians to the Mac Uidhir.
This page or section lists people that share the same given name or the same family name. If an internal link led you here, you may wish to change that link to point directly to the intended article.