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Irish Names that Start With U

Updated October 2026

Names5
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About this list

There are 5 Irish names that start with the letter U for boys and girls, including Unfrai, Uilliam, Ulick, Ultan, and Ungus.

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The names

Showing 1–5 of 5

  • Unfrai

    Unfrai is an exceptionally rare masculine name with possible Germanic or Old English origins. It may be a variant spelling of Humphrey (from Germanic 'hun' meaning bear cub and 'frid' meaning peace)…

  • Uilliam

    Irish variation of William

    A spelling that would definitely attract a lot of attention -- and a certain amount of confusion as well.

  • Ulick

    Irish

    "little William"

    You lick. You like. We didn't think so.

  • Ultan

    Irish

    "man from Ulster"

    This name of eighteen Irish saints of the past is relatively popular in Ireland, though little known outside it.

  • Ungus

    Ungus is a masculine name that appears to be a variant spelling of Angus, a name with Scottish and Irish Gaelic origins. Traditional Angus derives from the Celtic element "oen" meaning "one" and…