Thomas-Smith

surname · Latin script

Thomas-Smith 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 3M(measured from records)
  • GDGrenada1 in 113K
  • DZAlgeria≈1 in 1.1M

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)

112 people, 2010

Sources
94 (measured from records)

Highest-authority source

1 in 113K (inferred from the name graph)

Grenada

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 Thomassmith in US United States.

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)

Thomas-Smith 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 Thomas-Smith is recorded, by country
CountryMost common spellingSources
US United States1121 in 3M177ThomasSmith94
DZ Algeria≈40 est.≈1 in 1.1M—Thomas-Smith1
GB United Kingdom≈26 est.≈1 in 2.5M30Thomas-Smith33
AU Australia≈13 est.≈1 in 2M—Thomas-Smith20
CA Canada≈5 est.≈1 in 7.5M—Thomas-Smith9
NZ New Zealand≈3 est.≈1 in 1.5M—Thomas-Smith5
GD Grenada11 in 113K1——

112 people counted by Census Bureau — Surname Frequency 2010, 2010, counting the spelling thomassmith. 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); Grenada — Consolidated List of Electors December 2025. 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)

Thomas-Smith 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 ThomasSmith

  • Spanish surname4 spellings in the group

    Most recorded in United States

    Languages: Spanish, Portuguese

    Also written ThomasSmith

11 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 3 countries.

Official registers attesting Thomas-Smith
CountryRegisterYearCountRank
GB United KingdomSurnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register)200230#70,023
GD GrenadaGrenada — Consolidated List of Electors December 202520251#222
US United Stateswru Name Dictionary — US surnames, voter-file supplement (Khanna et al.)———

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

Frequently asked questions

In which country does Thomas-Smith have the most bearers?
In the United States, the national register counted about 112 people named Thomas-Smith, more than in any other country we hold, where it is most often spelled ThomasSmith.
Where is Thomas-Smith most common?
Measured as a share of residents rather than as a count, Thomas-Smith is densest in Grenada — about 1 in 113 thousand people — even though United States holds more of our records for it.
How common is the name Thomas-Smith?
In the United States, the national register counted 112 people named Thomas-Smith in 2010, about 1 in 3.0 million residents.

What do you want to know about Thomas-Smith?

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

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, “Thomas-Smith”. Data snapshot 2026-10-10.

See how Thomas-Smith parses inside a full name →