Williăm

surname · Latin script

Williăm is a surname written in the Latin script, with more bearers in the United States than in any other country, where it is the 8th most common given name. Recorded meaning: Unadapted borrowing from English William. Doublet of Guillermo.

rarermore common
  • NZNew Zealand≈1 in 107(inferred from the name graph)
  • GBUnited Kingdom≈1 in 111
  • SGSingapore≈1 in 129

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

2,240,114 people, 2020

#27 (measured from records)

of 15M given names, spellings grouped

4 (measured from records)

recorded for this name

Record sources
704 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 107 (inferred from the name graph)

New Zealand, est.

measured from records inferred from the name graph

Spellings & scripts

(measured from records)
WilliămLatin(measured from records)
ויליאםHebrew(measured from records)
윌리엄Hangul(measured from records)
УилямCyrillic(measured from records)

2 other spellings are counted as the same name:

Locally spelled William in US United States, GB United Kingdom, CA Canada and 4 more.

Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.

Meaning & origin

(measured from records)

Unadapted borrowing from English William. Doublet of Guillermo.

Cited for this meaning 8

  • A concise dictionary of first names
  • DUDEN Lexikon der Vornamen
  • The Oxford Dictionary of Family Names in Britain and Ireland
  • The Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles
  • Wiktionary

Attested across 26 languages in the etymology graph.

Where in the world

(measured from records)

Williăm counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.

Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.

Where Williăm is recorded, by country
CountryMost common spellingSources
US United States#82,240,1141 in 1482.2MWilliam704
GB United Kingdom#10≈590,000 est.≈1 in 1111.5KWilliam455
EG Egypt#129≈350,000 est.≈1 in 294—William94
IT Italy#23≈330,000 est.≈1 in 1881William179
CA Canada#8≈280,000 est.≈1 in 134148William381
SG Singapore#4≈48,000 est.≈1 in 129—William170
NZ New Zealand#7≈46,000 est.≈1 in 107—William183

2,240,114 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.

Registers cited: Census Bureau — First Name Frequency 2020 by sex; ONS — Baby names England and Wales (2024); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender; ISTAT — Contanomi newborn per-name series (1999–2024, JSONP backend). Figures without a register are Mondonomo estimates; see Methodology.

Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).

Evidence

(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Williăm under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Frequently asked questions

What does the name Williăm mean, and where does it come from?
Unadapted borrowing from English William. Doublet of Guillermo. Recorded by A concise dictionary of first names and DUDEN Lexikon der Vornamen and 6 other sources.
In which country does Williăm have the most bearers?
In the United States, the national register counted about 2.2 million people named Williăm, more than in any other country we hold, where it is most often spelled william.
How common is the name Williăm?
In the United States, the national register counted 2,240,114 people named Williăm in 2020, about 1 in 148 residents.
How common is Williăm compared with other names?
In the United States, Williăm is the 8th most common given name of 2,815,431 given names recorded there.

What do you want to know about Williăm?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/willi%C4%83m

The payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.

About this data

measured from records inferred from the name graph machine-generated

These figures come from the data snapshot of and will change as it is rebuilt.

Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.

Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.

Cite this page Mondonomo, “Williăm” — the 8th most common given name in United States. Data snapshot 2026-10-13.

See how Williăm parses inside a full name →