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Surname meaningKelly
“Descendant of Ceallach”
OriginIrish
TypePatronymic
First letterK
Where the name Kelly comes from
Kelly is a surname of Irish origin. It is classed as patronymic, meaning “descendant of ceallach.” Ceallach is of uncertain meaning, possibly bright-headed.
Other patronymic surnames
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A surname shows how the name began, not a family line. Many unrelated families share a name, and spellings changed over time.