Gaelic dynasty

McGuinness

Mag Aonghusa
Also: Magennis, McGinnis

“son of Aonghus”

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

Quick answers
Is McGuinness an Irish name?

McGuinness is a Gaelic name: it was formed in Irish, from an Irish ancestor, before English was spoken here. In Irish the name is Mag Aonghusa.

What does the surname McGuinness mean?

McGuinness (Irish: Mag Aonghusa) means “son of Aonghus”. Origin: Gaelic dynasty.

Where in Ireland is the surname McGuinness from?

The historic homeland of the McGuinness name is Down, Armagh. People moved, so the name can be found far beyond it.

What is the Irish for McGuinness?

Mag Aonghusa. Related spellings: Magennis, McGinnis.

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

Not your spelling? Try the full A–Z. Know more about the McGuinness name? Add to the story.