Show ContentsDuffly History, Family Crest & Coats of Arms

Etymology of Duffly

What does the name Duffly mean?

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

Early Origins of the Duffly family

The surname Duffly 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 Duffly family

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

Duffly Spelling Variations

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

Early Notables of the Duffly family

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

Migration of the Duffly 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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