Sím

surname · Latin script

Sím is a surname written in the Latin script, with more bearers in the United States than in any other country: 6,047 people, counted by the Census Bureau in 2010. In Singapore it is the 34th most common surname. Recorded meaning: riba accipenser glaber.

  • GYGuyana1 in 21K(measured from records)
  • USUnited States1 in 55K
  • FIFinland1 in 94K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

6,047 people, 2010

Record sources
372 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 21K (inferred from the name graph)

Guyana

measured from records inferred from the name graph

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Sim in US United States, SG Singapore, NL Netherlands.

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)

riba accipenser glaber

Cited for this meaning 1

  • Skok, Etimologijski rječnik hrvatskoga ili srpskoga jezika (1971-74)

Attested across 25 languages in the etymology graph.

Where the surname Sím is found

(measured from records)

Sím 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 Sím is recorded, by country
CountryMost common spellingSources
US United States—6,0471 in 55K6.4KSim372
BR Brazil—2831 in 748K283—2
PL Poland—2111 in 181K108—1
ES Spain—941 in 532K94—35
NL Netherlands—711 in 243K103Sim29
FI Finland—591 in 94K59—4
NO Norway—501 in 109K50—10
GY Guyana—361 in 21K36—3
SG Singapore#34———Sim175

6,047 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); CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); dane.gov.pl — PESEL living persons (surnames); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); DVV — Nimipalvelu (Finnish name service, per-name lookup); SSB — Navnesøk (name-search service, living population); Guyana — Official List of Electors July 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)

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

  • Swedish surname9 spellings in the group

    Most recorded in United States, Denmark, Singapore, United Kingdom

    Languages: Swedish, Danish

    Also written Sim, Śîm, Šīm, Sìm

4 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)

Sím 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 Hungarian, first-person singular single-possession possessive of sí

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In Serbo-Croatian, riba accipenser glaber

    as a wordSkok, Etimologijski rječnik hrvatskoga ili srpskoga jezika (1971-74)

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)
100012001400160018002000Shen Kuo, b. 1031Mao Dun, b. 1896Freda Foh Shen, b. 1948
  • Shen Kuob. 1031CNnot in their usual nameChinese scientist and statesman (1031-1095)
  • Mao Dunb. 1896CNnot in their usual nameChinese writer (1896-1981)
  • Freda Foh Shenb. 1948USnot in their usual nameAmerican actress

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).

Evidence

(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Sím 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 Sím mean, and where does it come from?
riba accipenser glaber Recorded by Skok, Etimologijski rječnik hrvatskoga ili srpskoga jezika (1971-74).
Which countries have the most people with the surname Sím?
In the United States, the national register counted about 6.0 thousand people named Sím, more than in any other country we hold, where it is most often spelled sim. After it come Brazil, Poland, Spain and Netherlands; the country table on this page ranks them.
Where is Sím most common?
Measured as a share of residents rather than as a count, Sím is densest in Guyana — about 1 in 21 thousand people — even though United States holds more of our records for it.
How common is the name Sím?
In the United States, the national register counted 6,047 people named Sím in 2010, about 1 in 55 thousand residents.
How common is Sím compared with other names?
In Singapore, Sím is the 34th most common surname of 78,292 surnames recorded there.

What do you want to know about Sím?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/s%C3%ADm

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, “Sím” — ranked 5257th in the United States (Census Bureau). Data snapshot 2026-10-13.

See how Sím parses inside a full name →