Marley
Marley—This name is the anglicised form of an old Irish sept in the County of Mayo, and in Co. Limerick; in Gaelic O'Mearlaigh. The name shouldn't be confused with a Northumbrian family of the name Marley that settled in Ireland in the Seventeenth Century.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees