Mainchin of Corann

Saint Mainchin of Corann (Mainchín mac Colláin, that is, son of Collán) was an Irish saint of Corann, thought to have flourished in the late fifth or the sixth century. The Martyrology of Donegal, compiled in the seventeenth century, says that his father was named Collán and his mother Deidi, daughter of Tren, son of Dubthach, chief poet of King Lóegaire. Deidi appears as mother of other saints too, among them Senán, son of Fintan.

The Martyrology of Donegal ties him to Corann, which scholars have identified with the barony of Corann in County Sligo. In Scottish calendars he was taken for, or confused with, a female saint of a similar name, Mancina, grouped with virgins and widows. He is remembered on 13 January in the Martyrologies of Tallaght, of Gorman and of Donegal (the martyrologies' date, in the Julian calendar). He is a saint of the undivided Church, honoured locally, without synodal canonization.