Kelly is one of the most common surnames in Scotland — yet it is not, in the main, a Scottish name. Behind that everyday fact lies a story of two separate origins and one great migration.
Quick answer: Kelly is overwhelmingly an Irish surname — the anglicised Ó Ceallaigh, one of the most numerous names in Ireland — but it also has a small, genuine Scottish territorial origin from places named Kelly in Renfrewshire and Kellie in Fife and Angus. Most Scottish Kellys descend from the great nineteenth-century Irish settlement of Glasgow and the west of Scotland.
Where Does the Kelly Name Come From?
Two distinct streams produced the name. The far larger is Irish: Ó Ceallaigh, "descendant of Ceallach," an ancient personal name borne by several unrelated Irish septs, the greatest of them the O'Kellys of Uí Maine, kings in Galway and Roscommon — a story told in full in our history of the Kelly Irish surname.
The smaller stream is Scottish and territorial: families took the name from the lands of Kelly near Wemyss Bay in Renfrewshire and from Kellie in Fife and Angus — the latter remembered in Kellie Castle, one of the finest surviving tower houses in Fife. These place-name Kellys were never a clan, but they are a genuine, documented Scottish line of the name dating back to the medieval period.
Is Kelly Scottish or Irish?
For most families, Irish — and the Scottish connection usually runs through Glasgow rather than Fife. The huge Irish migration to the west of Scotland in the nineteenth century, driven by famine and the shipyard and mill work of the Clyde, made Kelly one of the most common surnames in Glasgow within two generations. A Scottish Kelly family today is therefore most likely of Irish descent with deep Scottish roots — a double heritage, not a divided one. A minority descend from the old Renfrewshire and Fife place-name lines instead, and parish records are the surest way to tell which story is yours.
Own a Piece of Kelly Heritage
The Kelly name appears across keepsakes including a woven blanket honouring the O'Kelly Kings of Uí Maine, a ceramic Christmas ornament, and an outdoor garden flag, each pairing the family crest with a traditional tartan background.
Popular Kelly gifts: Woven Blanket · Ornament · Garden Flag
Frequently Asked Questions About the Kelly Name
Is Kelly Irish or Scottish?
Primarily Irish — the anglicised Ó Ceallaigh — though a smaller Scottish territorial line exists from places named Kelly in Renfrewshire and Kellie in Fife, and Irish settlement made the name one of the most common in Scotland.
What does the Kelly name mean?
The Irish Ó Ceallaigh means "descendant of Ceallach," an old personal name; the Scottish Kelly is a place name, likely from the Gaelic for grove or wood.
Is Kelly a Scottish clan?
No. The Scottish Kellys were place-name families rather than a clan with a chief, and most Kellys in Scotland descend from Irish families of the Ó Ceallaigh septs.
Why is Kelly so common in Glasgow?
Nineteenth-century Irish migration to the Clyde's shipyards and mills brought tens of thousands of Irish families to the west of Scotland, and Kelly — among Ireland's most numerous names — came with them.
If you're proud of your Kelly heritage — Irish, Scottish, or both — you can explore gifts and home décor featuring the Kelly name by using the search bar above.
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