Mac Tail of Cill Cuilinn

Saint Mac Tail of Cill Cuilinn is an Irish saint of the undivided Church, remembered in the old martyrologies of Ireland.

The Donegal text gives his other name as Aenghus. He is said to have been of the race of Core, son of Lughaidh, king of Munster, and a brother of Colman of Cill Cleitighe, whose year is given as 548.

The Martyrology of Donegal, compiled in 1630 from older sources, commemorates him on 11 June. The Martyrology of Tallaght, from the early ninth century, lists a similar name on the same day. The date is that of the old Irish calendar, that is, in the old style.

The sources consulted record nothing more about him.