Gaelic sept

Moriarty

Ó Muircheartaigh
Also: O'Moriarty

“descendant of Muircheartach, 'skilled navigator' — from muir, the sea”

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

Quick answers
Is Moriarty an Irish name?

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

What does the surname Moriarty mean?

Moriarty (Irish: Ó Muircheartaigh) means “descendant of Muircheartach, 'skilled navigator' — from muir, the sea”. Origin: Gaelic sept.

Where in Ireland is the surname Moriarty from?

The historic homeland of the Moriarty name is Kerry. People moved, so the name can be found far beyond it.

What is the Irish for Moriarty?

Ó Muircheartaigh. Related spellings: O'Moriarty.

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

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