Surnames of Irish Origin

4,666 surnames found of Irish origin

Deloughery
The surname Deloughery is of Irish origin and is derived from the Gaelic name Ó Lachtnáin, meaning "descendant of Lachtnán." The name Lachtnán is derived from the word "lachtna," which means "gray"......
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Delury
The surname Delury is of Irish origin and is derived from the Gaelic name Ó Dubhlaoich, meaning "descendant of Dubhlaoch." The name Dubhlaoch itself is composed of the elements "dubh," meaning "bla......
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Delvin
The surname Delvin is of Irish origin and is derived from the Gaelic name Ó Dubhláin, meaning "descendant of Dubhlán." The name Dubhlán is composed of the elements "dubh," meaning "black" or "dark,......
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Dempsay
The surname Dempsay is of Irish origin and is derived from the Gaelic name "Ó Díomasaigh," meaning "descendant of Díomasach." The name Díomasach is believed to be derived from the Gaelic word "díom......
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Dempsey
The surname Dempsey is of Irish origin and is derived from the Gaelic name "Ó Díomasaigh," meaning "descendant of Diomasach." The name Diomasach is believed to be derived from the Gaelic word "diom......
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Dempsy
The surname Dempsy is of Irish origin and is derived from the Gaelic name "Ó Díomasaigh," meaning "descendant of Díomasach." The name Díomasach is believed to be derived from the Gaelic word "díoma......
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Demsey
The surname Demsey is of Irish origin and is derived from the Gaelic name "Ó Diomasaigh," meaning "descendant of Diomasach." The name Diomasach is believed to be derived from the word "diomas," whi......
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Deneen
The surname Deneen is of Irish origin and is derived from the Gaelic name Ó Duinnín, meaning "descendant of Duinnín." The name Duinnín is a diminutive form of the Gaelic word "dún," which means "fo......
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Denehy
The surname Denehy is of Irish origin and is derived from the Gaelic name Ó Duineachaidh, meaning "descendant of Duineachaidh." The name Duineachaidh is believed to be derived from the Gaelic word ......
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Denevan
The surname Denevan is of Irish origin and is derived from the Gaelic name "Ó Duinnshléibheáin," meaning "descendant of Duinnshléibheán." The name Duinnshléibheán is composed of the elements "dubh,......
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Surnames of Irish Origin

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