Surnames of Irish Origin

4,666 surnames found of Irish origin

Lahart
The surname Lahart is of Irish origin and is derived from the Gaelic name Ó Leathlobhairt, meaning "descendant of Leathlobhairt." Leathlobhairt is composed of the elements "leath," meaning "half," ......
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Lahey
The surname Lahey is of Irish origin and is derived from the Gaelic name Ó Laochdha, meaning "descendant of Laochdha." Laochdha is a personal name derived from the word "laoch," which translates to......
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Lahiff
The surname Lahiff is of Irish origin and is derived from the Gaelic name Ó Laithimh, meaning "descendant of Laithimh." The name Laithimh itself is believed to be derived from the word "laith," whi......
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Lain
The surname Lain is of English origin and has multiple possible meanings. It could be derived from the Old English word "lægen," meaning "to heal," suggesting that the name was originally given to ......
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Lakin
The surname Lakin is of English origin and has multiple possible meanings. It is derived from the medieval given name "Lake," which itself originated from the Old English word "lacu" meaning "strea......
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Lalley
The surname Lalley is of Irish origin and is derived from the Gaelic name Ó Maolalaidh, meaning "descendant of Maolalaidh." The name Maolalaidh is composed of the elements "maol," meaning "bald" or......
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Lally
The surname Lally is of Irish origin and is derived from the Gaelic name Ó Maolalaidh, meaning "descendant of Maolalaidh." Maolalaidh is a personal name composed of the elements "maol," meaning "ba......
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Lalor
The surname Lalor is of Irish origin and is derived from the Gaelic name Ó Leathlobhair, meaning "descendant of Leathlobhair." Leathlobhair is a personal name composed of the elements "leath," mean......
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Lanagan
The surname Lanagan is of Irish origin and is derived from the Gaelic name Ó Lannagáin, meaning "descendant of Lannagán." The name Lannagán is a diminutive form of the personal name Lann, which mea......
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Lanaghan
The surname Lanaghan is of Irish origin and is derived from the Gaelic name Ó Lannacháin, meaning "descendant of Lannachán." The name Lannachán is a diminutive form of the personal name Lannach, wh......
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Surnames of Irish Origin

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