Firmin

surname · Latin script

Meaning, in French: From Latin Firminus, from firmus ‘strong, steadfast’

Recorded as a male name· opposite-gender records fall within measured source noise

/fiʁmɛ̃/(machine-generated) pronunciation, model-generated

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

rarermore common
  • DMDominica1 in 12K(measured from records)
  • BEBelgium1 in 266K
  • USUnited States1 in 386K

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

862 people, 2010

Sources
42 (measured from records)

Highest-authority source

1 in 12K (inferred from the name graph)

Dominica

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin(measured from records)

from the medieval personal name Firmin, literally ‘firm of purpose, resolute’.

Sources 1

  • Encyclopedia of surnames [the complete companion to tracing your names history]

Attested across 5 languages in the etymology graph.

How Firmin is read(measured from records)

Firmin is one spelling over 2 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.

  • French49%

    From Latin Firminus, from firmus ‘strong, steadfast’.

    as a nameLe grand guide des prénoms (Enfant - Education)

    Origine latine, « solide ».

    as a nameLe grand guide des prénoms (Enfant - Education)

  • English43%

    from the medieval personal name Firmin, literally ‘firm of purpose, resolute’.

    as a nameEncyclopedia of surnames [the complete companion to tracing your names history]

    from Lat Firminus, a diminutive of firmus ‘firm, strong’; first attested Alexander filius Firmin 1214–32 AD i (Mx)

    as a nameA Dictionary of English Surnames

The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.

Where in the world(measured from records)

Firmin 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 Firmin is recorded, by country
CountryMost common spellingSources
US United States8621 in 386K1.2KFirmin42
BR Brazil721 in 2.9M72Firmin14
BE Belgium441 in 266K44Firmin3
CH Switzerland181 in 467K18Firmin3
ES Spain71 in 7.1M7Firmin8
DM Dominica61 in 12K6——

862 people counted by Census Bureau — Surname Frequency 2010, 2010. 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; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Familienaam.be — Belgian family-name frequency (population register); BFS — Familiennamen der Wohnbevölkerung (surnames); INE — Padrón per-token widgets (current living counts, given + apellidos); Dominica — Revised List of Electors May 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)

Firmin is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written Firmín

55 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.

Other recorded senses(measured from records)

Firmin is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Romanian, lat. Firminus < firmus. 1. Firmin (Olt). 2. Fermin (Syn 25 iun). Firon, -a si Firoana, Firina v. Filon 2 si Veronica 2. Fir, -olu, -u v. P orfirie II 2. Firulina v. C h i r a 5 c. Fisente, -ea v. V ic h ent ie 3. Fitelti v. N e o f it 4. Fition, -esti v. loan V A 1. Fifa v. Sofia I 7. Finareta v. Filar et a. Firsina v. Eufrosina 7. Floar/e, -es -ea v. Flor I 14 ; II 1.

    as a nameDictionar Onomastic Rominesc

  • In German, männl. Vom. lateinischen Ursprungs, der auf den spätrömischen Beinamen Firmi- nus (zu lat. flrmus »fest, standhaft [im

    as a nameDUDEN Lexikon der Vornamen

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

Notable people with this name(measured from records)

16001700180019002000Giles Firmin, b. 1614Firmin Girard, b. 1838Anténor Firmin, b. 1850Georges Firmin, b. 1924Peter Firmin, b. 1928Gilles Firmin, b. 1955Hannah Firmin, b. 1956Mickaël Firmin, b. 1990

The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).

How to address them(machine-generated)

FormalMonsieur,Dear Mr Firmin, (English)
InformalBonjour Firmin,Hi Firmin, (English)

Evidence(measured from records)

Attested in 41 sources across 25 countries.

Official registers attesting Firmin
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020107#52,287
US United StatesSSA — National Baby Names (1880–present)19425—
US United StatesCensus Bureau — First Name Frequency 2020 by sex20201#52,287

Reference works 5

  • Dictionary of American Family Names
  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Wikipedia given-name tokens
  • Wikipedia surname tokens
  • Wikidata name items (native-script + romanized given/family names)

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

Where does the name Firmin come from?
from the medieval personal name Firmin, literally ‘firm of purpose, resolute’. Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
What does the name Firmin mean?
In French, From Latin Firminus, from firmus ‘strong, steadfast’.
How do you pronounce Firmin?
A machine transcription gives /fiʁmɛ̃/ (IPA) for French.
In which country does Firmin have the most bearers?
In the United States, the national register counted about 862 people named Firmin, more than in any other country we hold, where it is most often spelled firmin.
Where is Firmin most common?
Measured as a share of residents rather than as a count, Firmin is densest in Dominica — about 1 in 12 thousand people — even though United States holds more of our records for it.
How common is the name Firmin?
In the United States, the national register counted 862 people named Firmin in 2010, about 1 in 386 thousand residents.

What do you want to know about Firmin?

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

Please leave out anyone's personal details (see Privacy).

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

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, “Firmin”. Data snapshot 2026-10-10.

See how Firmin parses inside a full name →