Mac Creiche of Liscannor is described by various old texts as an early Irish saint, a hermit who slew monsters and persuaded kings to submit to him through miracles. He was probably not a historical figure. The stories of his life are most likely derived from earlier pagan legends, and he may be equated with a pagan god.

Kilmacrehy, sometimes also Kilmacreehy, is a civil parish in County Clare, Ireland. The ruins of the old parish church lie near the coastal village of Liscannor, which is also a part of the parish.