Ac

loc · Latin script

Meaning: abbreviation of Acre: a state of Brazil

Recorded for both men and women· direction only, no split published

Ac is a name written in the Latin script, with more bearers in Colombia than in any other country.

rarermore common
  • PEPeru≈1 in 84K(inferred from the name graph)
  • BRBrazil1 in 3.5M
  • CLChile≈1 in 60K

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.

Colombia (inferred from the name graph)

≈680 people, est.

Sources
71 (measured from records)

Highest-authority source

≈1 in 60K (inferred from the name graph)

Chile, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

Locally spelled A'C in US United States, CO Colombia, CL Chile.

Meaning & origin(measured from records)

abbreviation of Acre: a state of Brazil

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

Ac 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 Ac is recorded, by country
CountryMost common spellingSources
CO Colombia≈680 est.≈1 in 72K—A'C22
US United States≈390 est.≈1 in 858K796A'C71
PE Peru≈380 est.≈1 in 84K—Ac16
CL Chile≈300 est.≈1 in 60K—A'C14
PT Portugal≈90 est.≈1 in 115K—Ac16
BR Brazil601 in 3.5M60Ac42
NL Netherlands≈29 est.≈1 in 596K53Ac6

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: IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Census Bureau — First Name Frequency 2020 by sex; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018). 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)

Ac is also recorded as 7 other names, grouped separately because the records behind them do not connect to the one described above.

  • Dutch surname40 spellings in the group

    Most recorded in Netherlands, United States, Australia, Germany

    Languages: Dutch, English, German

    Also written A-C, A'C, Aç, Âc, Ac'

  • a separate name7 spellings in the group

    Also written Âç, Åc, A-C, Aç, Ač

  • Hindi name9 spellings in the group

    Most recorded in India, Pakistan

    Languages: Hindi, Urdu

    Also written Ác, Ãc, Áč, A-C, Âç

  • French name13 spellings in the group

    Most recorded in France

    Also written A'C, Ãč, Aç, Ãç, Ąċ

  • Arabic surname44 spellings in the group

    Most recorded in Morocco, Egypt, Iraq, Algeria

    Also written Âç, Äc, Àc, Àç, Ãč

  • Indonesian name4 spellings in the group

    Most recorded in Indonesia

    Also written Åč, Ác, Àc

  • a separate name3 spellings in the group

    Also written Ác, A-C

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)

Ac is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In cdo, a lady doctor ABE a heroine. KN a woman, a wife, (hé-ing)

    as a wordDictionary of the Foochow Dialect

  • In dra-nor-pro, thorn

    as a wordStarLing Tower of Babel etymological databases (Starostin et al.)

  • Exceptionally reserved ISO 3166-1 alpha-2 country code for Ascension Island.

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

  • In English, Initialism of absolute ceiling.

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

  • In French, pronunciation spelling of avec

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

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.

Evidence(measured from records)

Attested in 11 sources across 9 countries.

Official registers attesting Ac
CountryRegisterYearCountRank
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—60#92,187
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

What does the name Ac mean, and where does it come from?
abbreviation of Acre: a state of Brazil Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
In which country does Ac have the most bearers?
Mondonomo estimates about 684 people named Ac in Colombia, more than in any other country we hold, where it is most often spelled a'c.
How common is the name Ac?
In Brazil, the national register counted 60 people named Ac, about 1 in 3.5 million residents.

What do you want to know about Ac?

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

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, “Ac”. Data snapshot 2026-10-10.

See how Ac parses inside a full name →