Duffy.
A surname from Irish, an anglicization of Ó Dubhthaigh (“descendant of Dubhthach”). Dubhthach is a byname derived from dubh (“black”).
Meaning & usage
A surname from Irish, an anglicization of Ó Dubhthaigh (“descendant of Dubhthach”). Dubhthach is a byname derived from dubh (“black”).
A surname from Irish, an anglicization of Ó Doithe.
A Scottish surname from Scottish Gaelic [in turn originating as a patronymic], an alternate anglicization of Mac Dhuibhshíthe (McPhee).
A suburb of Canberra, Australia; named for Charles Gavan Duffy, 8th Premier of Victoria.
An unincorporated community in Ohio Township, Monroe County, Ohio, United States.
An unincorporated community in Lewis County, West Virginia, United States.
Where this word comes from
From the Irish surname, from Ó Dubhthaigh (literally “descendant of Dubhthach”) and Mac Duibhshíthe (literally “son of Duibhshíth”), from dubh (“black”) + sìth (“peace”), comparable to the surname Duff.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.