Uilliam
Germanic · Boy · 2 syllables
Popularity & facts
Relative popularity index, 2010–2025Popularity over time
Popularity indexHistorical popularity from 1880–2025 · US Social Security Administration data
About the name Uilliam
Uilliam is the Irish spelling of William, derived from the Germanic elements "wil" (desire/will) and "helm" (helmet/protection), meaning "resolute protector." The name is used primarily in Irish and Scottish Gaelic-speaking cultures, with historical significance in Ireland and Scotland where it has been borne by numerous clan leaders, kings, and figures in Celtic history.
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Etymology
Uilliam is the Irish spelling of William, derived from the Germanic elements "wil" (desire/will) and "helm" (helmet/protection), meaning "resolute protector." The name is used primarily in Irish and Scottish Gaelic-speaking cultures, with historical significance in Ireland and Scotland where it has been borne by numerous clan leaders, kings, and figures in Celtic history.
Uilliam currently ranks #14,103 in the United States as a boy's name. It reached its peak popularity around 2018.
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Sibling name ideas
Irish names that sit beautifully beside UilliamSimilar names you might like
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- Ulisess
- Unyque
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