Is Costello an Irish name?

Originally Italian, but came to Ireland and other places a long time ago. So it is an Irish surname in that it has been there a long time. Just as David is an English first name even though it existed in other languages before English.





It doesn't mean it need have Italian roots though. Just as African Americans often have Welsh and Irish surnames, so too serfs could take on surnames of vassals in Medieval Ireland.

Is Costello an Irish name?
Hey Marlin,





Swyrich.com says Irish and Italian:





" Costello


Irish Italian(2 origins available)





Spelling variations of this family name include: Costello, MacCostello, Costillo, Costallo, Kostello, McCostello, Caustello, Costellow and many more.





First found in county Mayo where they were granted lands by the Earl of Pembroke in the Anglo-Norman invasion of 1172.





Some of the first settlers of this family name or some of its variants were: Honor Costello who landed in America in 1756; Bernard, Cornelius, Edward, Hugh, J.B. James, John, John B. Lawrence, Mark, Michael, Neal, Patrick, Peter, Philip, Thomas, Timothy, and William Costello, all landed in Philadelphia Pa. between 1833 and 1874."





Above is the Irish description. You can validate this by looking in the LDS Family Search site to see that there are infact ancestors that originate there long ago. There are 314 entries at the Family Search site. Many of them are IRISH.
Reply:Irish and Italian. More commonly Irish
Reply:Nope, it's Italian.
Reply:No, it's Italian. = )