Show ContentsDuffley History, Family Crest & Coats of Arms

The surname Duffley is an Anglicization of the original Irish Ó Duibhghiolla, from the Gaelic meaning "black" and "lad." 1

Early Origins of the Duffley family

The surname Duffley was first found in County Galway (Irish: Gaillimh) part of the province of Connacht, located on the west coast of the Island, where it belonged to two different septs, the Ui Fiachrach in the southwest of the county and the Siol Anmchadha in the southeast.

Early History of the Duffley family

This web page shows only a small excerpt of our Duffley research. More information is included under the topic Early Duffley History in all our PDF Extended History products and printed products wherever possible.

Duffley Spelling Variations

Spelling variations of this family name include: Devilly, O'Devilly, Diffley, Devally, Deffely, Deely and many more.

Early Notables of the Duffley family

More information is included under the topic Early Duffley Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the Duffley family

Some of the first settlers of this family name or some of its variants were: Peggy and Thomas Devally, who immigrated to St. John, New Brunswick in 1834; Patrick, Mary, George, James, and Bridget Deffely, who landed in New York in 1847.



  1. MacLysaght, Edward, The Surnames of Ireland. Ireland: Irish Academic Press, sixth edition, 1985. Print. (ISBN 0-7165-2366-3)


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