Gaelic sept

Lonergan

Ó Longargáin
Also: Lonnergan, Londregan, Londrigan, Landregan, Lorrigan, O'Lonergan

“descendant of Longargán, a diminutive of lonngarg, ‘strong-fierce’”

The sept's historic heartland, highlighted. People moved — a name can be found far from home.

Quick answers
Is Lonergan an Irish name?

Lonergan is a Gaelic name: it was formed in Irish, from an Irish ancestor, before English was spoken here. In Irish the name is Ó Longargáin.

What does the surname Lonergan mean?

Lonergan (Irish: Ó Longargáin) means “descendant of Longargán, a diminutive of lonngarg, ‘strong-fierce’”. Origin: Gaelic sept.

Where in Ireland is the surname Lonergan from?

The historic homeland of the Lonergan name is Tipperary, Kilkenny, Waterford. People moved, so the name can be found far beyond it.

What is the Irish for Lonergan?

Ó Longargáin. Related spellings: Lonnergan, Londregan, Londrigan, Landregan, Lorrigan, O'Lonergan.

Looking for the Lonergan family crest? Read this first — arms belong to people, not surnames, and the honest version is more interesting. Tracing Lonergan ancestors? The step-by-step guide.

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