Williams-Brown

surname · Latin script

Williams-Brown is a surname written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • USUnited States1 in 1.8M(measured from records)
  • GBUnited Kingdom≈1 in 3.4M
  • AUAustralia≈1 in 9M

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)

190 people, 2010

Sources
110 (measured from records)

Highest-authority source

1 in 1.8M (inferred from the name graph)

United States

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Williamsbrown in CA Canada, DE Germany.

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

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Where in the world(measured from records)

Williams-Brown 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 Williams-Brown is recorded, by country
CountryMost common spellingSources
US United States1901 in 1.8M273Williams-Brown110
GB United Kingdom≈19 est.≈1 in 3.4M47Williams-Brown29
CA Canada≈3 est.≈1 in 14M—Williamsbrown3
AU Australia≈3 est.≈1 in 9M—Williams-Brown8
DE Germany———Williamsbrown2

190 people counted by Census Bureau — Surname Frequency 2010, 2010, counting the spelling williamsbrown. 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 — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register). 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).

Other names spelled this way(inferred from the name graph)

Williams-Brown is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written Williamsbrown

  • Spanish surname4 spellings in the group

    Most recorded in United States, Guatemala

    Languages: Spanish, Portuguese

    Also written Williamsbrown

17 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Evidence(measured from records)

Attested in 3 sources across 2 countries.

Official registers attesting Williams-Brown
CountryRegisterYearCountRank
GB United KingdomSurnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register)200247#52,803
US United Stateswru Name Dictionary — US surnames, voter-file supplement (Khanna et al.)———

Reference works 1

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007

These works list the name; their figures are licensed and are not reproduced here.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

In which country does Williams-Brown have the most bearers?
In the United States, the national register counted about 190 people named Williams-Brown, more than in any other country we hold, where it is most often spelled Williams-Brown.
Where is Williams-Brown most common?
Williams-Brown is densest in the United States, where the national register counts about 1 in 1.8 million people carrying it.
How common is the name Williams-Brown?
In the United States, the national register counted 190 people named Williams-Brown in 2010, about 1 in 1.8 million residents.

What do you want to know about Williams-Brown?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/williams-brown

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, “Williams-Brown”. Data snapshot 2026-10-10.

See how Williams-Brown parses inside a full name →