Boy · #12,301 in 2026

Uilliam

William is a masculine given name of Germanic origin. It became popular in England after the Norman conquest in 1066, and remained so throughout the Middle Ages and into the modern era. It is sometimes abbreviated "Wm." Shortened familiar versions in English include Will or Wil, Wills, Willy, Willie, Bill, Billie, and Billy.

  • Irish
Current Rank
#12,301
Peak Rank
#7,134 (2018)
Total Babies
52
5-Yr Trend
-29%
2013
First Year
2024
Last Year
2018
Peak Year
#7134
Peak Rank
52
Total Count
8
Years Active

Meaning & Origin of Uilliam

What this name means, where it came from, and how it has traveled across cultures.

William is a masculine given name of Germanic origin. It became popular in England after the Norman conquest in 1066, and remained so throughout the Middle Ages and into the modern era. It is sometimes abbreviated "Wm." Shortened familiar versions in English include Will or Wil, Wills, Willy, Willie, Bill, Billie, and Billy.

Source: Wikipedia (CC BY-SA 3.0). Read more →

Cultural Origins (via Behind the Name)

  • Irish
Etymology
William is related to the German given name Wilhelm . Both ultimately descend from Proto-Germanic *Wiljahelmaz , with a direct cognate also in the Old Norse name Vilhjalmr and a West Germanic borrowing into Medieval Latin Willelmus . The Proto-Germanic name is a compound of * wiljô "will, wish, desire" and * helmaz "helm, helmet ". By regular sound change, Proto-Germanic * Wiljahelmaz should have also descended into English as * Wilhelm , but this latter form is unattested in written English of any period; the Anglo-Saxon Chronicle refers to William the Conqueror as Willelm , a back-formation

The Story of Uilliam

Uilliam first appeared in U.S. Social Security Administration records as a baby boy name in 2013, with 5 babies given the name that year. The name hit its high-water mark in 2018: 11 births, good for #7,134 nationwide. About 67% of every Uilliam on record arrived during the 2010s, its defining decade. Uilliam last appeared in the published SSA data in 2024, with 5 recorded births — it has not charted nationally since. All told, over 52 Americans have carried the name since 1880, from the 2010s to the 2020s.

Popularity Over Time

Popularity by State

ME
WA
MT
ND
MN
WI
MI
NY
VT
NH
MA
OR
ID
SD
IA
IL
IN
OH
PA
NJ
CT
RI
CA
NV
WY
NE
MO
KY
WV
VA
MD
DE
DC
UT
CO
KS
AR
TN
NC
SC
AK
AZ
NM
OK
LA
MS
AL
GA
HI
TX
FL
Top 10
11-50
51-100
101-500
500+
No data

Variants & Related Forms of Uilliam

Foreign forms, alternate spellings, and nicknames that share roots with Uilliam. Linked entries have a profile on Peek a Name.

Names that sound like Uilliam

Phonetically similar names — useful when Uilliam is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.

Source: Datamuse . Phonetic similarity ranking, not curated.

Frequently Asked Questions about Uilliam

What does the name Uilliam mean?
William is a masculine given name of Germanic origin. It became popular in England after the Norman conquest in 1066, and remained so throughout the Middle Ages and into the modern era. It is sometimes abbreviated "Wm." Shortened familiar versions in English include Will or Wil, Wills, Willy, Willie, Bill, Billie, and Billy.
What is the origin of the name Uilliam?
Uilliam has roots in the following cultural and linguistic traditions: Irish.
How popular is Uilliam in 2026?
In 2026, Uilliam ranks #12,301 among boys' names in the U.S., with 5 babies given the name that year.
When was Uilliam most popular?
Uilliam reached its peak popularity in 2018, ranking #7,134 that year with 11 babies given the name.
Is Uilliam a unisex name?
In U.S. Social Security records, Uilliam is primarily a boy's name. We don't have meaningful data for it as a girl's name.
What names go well with Uilliam?
Names that share a similar style or popularity range with Uilliam include Everrett, Weylon, Taahir. These pairings are based on rank proximity and naming era in U.S. data.
What are nicknames or variants of Uilliam?
Common variants and related forms of Uilliam include Liam, Uilleag, Ulick. These cover foreign-language equivalents, alternate spellings, and short forms.

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Taahir
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Jerusalem
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About the name Uilliam

Uilliam is a boy baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 2013 and has accumulated 52 births in the dataset. Uilliam's peak popularity came in 2018 when it ranked #7,134. Use the chart and map above to compare Uilliam's trajectory across years and U.S. states, or browse the related names section to discover similar choices.

Continue exploring

Data sources

  • Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
  • Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
  • Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
  • Predicted nationality distribution — Nationalize.io .
  • Phonetically similar names — Datamuse .

Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.