Iseabail Ní Mheic Cailéin, Gaelic noblewoman and poet, fl.
Three poems by Iseabail are preserved in the Book of the Dean of Lismore - Atá fleasgach ar mo thí, Éistibh, a Luchd an Tighe-se and Is mairg dá ngalar an grádh.
Thomas Owen Clancy notes that Éistibh, a Luchd an Tighe-se "is a fairly obscene boast to the court circle on the size and potency of her household priest's penis.
In a 2017 article about Scottish Gaelic erotic literature, Peter Mackay suggested that Iseabail may have been following the established tradition in Scottish Renaissance literature of exposing, mocking, and criticizing the sexual sins of priests and consecrated religious.
Mackay conceded, however, that Iseabail's poem could just as easily be an unashamed celebration of female promiscuity and lust.