Bíllý

given name · Latin script

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

(measured from records)Officially recorded in 1 country

Bíllý is a male given name written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: * Of obscure origin. Perhaps from the name Billy, a diminutive of William, or a variant of bully (“companion, mate, comrade”). Compare Scots billie (“a comrade; companion”).

  • USUnited States1 in 1.9K(measured from records)
  • SESweden1 in 3K
  • ECEcuador1 in 11K

carrying the name, as counted by each country's national register. 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)

173,433 people, 2020

Record sources
280 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 1.9K (inferred from the name graph)

United States

measured from records inferred from the name graph

Name dossier (print, CSV)Make your nomograph ✦

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Billy in US United States, BR Brazil, PA Panama.

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)

* Of obscure origin. Perhaps from the name Billy, a diminutive of William, or a variant of bully (“companion, mate, comrade”). Compare Scots billie (“a comrade; companion”). Compare also Middle Low German billig (“equitable, reasonable, lawful, fitting, according to natural law, just”). * (condom): From the E-Rotic song Willy, Use a Billy... Boy, referring in turn to Billy Boy, a German brand of condoms.

Cited for this meaning 6

  • DUDEN Lexikon der Vornamen
  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Wiktionary
  • Förnamn i Sverige. Kortfattat namnlexikon
  • Dictionnaire des noms de famille du Canada français. Anthroponymie et généalogie. 2e édition

Attested across 22 languages in the etymology graph.

Where in the world

(measured from records)

Bíllý 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 Bíllý is recorded, by country
CountryMost common spellingSources
US United States—173,4331 in 1.9K171KBilly280
SE Sweden—3,4341 in 3K3.4K—16
EC Ecuador—1,5011 in 11K1.5K—25
BR Brazil—6571 in 322K657Billy88
CR Costa Rica—3801 in 13K380—32
DK Denmark—2661 in 22K266——
PA Panama#103———Billy30

173,433 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. 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 — First Name Frequency 2020 by sex; IBGE — names by decade (Kaggle mirror); Skatteverket — Sök hur många som har ett visst namn (living population); INEC — civil registry names; TSE — electoral roll (padrón) names; Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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)

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

  • English given name45 spellings in the group

    Most recorded in United States, United Kingdom, Canada, Australia

    Languages: English, German, Chinese

    Also written Billy, Bïllÿ, Bïlly, Bîlly, Bìlly

  • Polish given name28 spellings in the group

    Most recorded in Poland, United States, Czechia, Slovakia

    Languages: Polish, Czech, Russian

    Also written Billy, Били, Billý, Bili, Bílly

1 further group 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)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Bíllý under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

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

Frequently asked questions

What does the name Bíllý mean, and where does it come from?
* Of obscure origin. Perhaps from the name Billy, a diminutive of William, or a variant of bully (“companion, mate, comrade”). Compare Scots billie (“a comrade; companion”). Recorded by DUDEN Lexikon der Vornamen and The Oxford Dictionary of Family Names in Britain and Ireland and 4 other sources.
Is Bíllý a male or female name?
Bíllý is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
In which country does Bíllý have the most bearers?
In the United States, the national register counted about 173 thousand people named Bíllý, more than in any other country we hold, where it is most often spelled billy.
Where is Bíllý most common?
Bíllý is densest in the United States, where the national register counts about 1 in 1.9 thousand people carrying it.
How common is the name Bíllý?
In the United States, the national register counted 173,433 people named Bíllý in 2020, about 1 in 1.9 thousand residents.
How common is Bíllý compared with other names?
In Panama, Bíllý is the 103rd most common given name of 24,657 given names recorded there.

What do you want to know about Bíllý?

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

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, “Bíllý” — the 103rd most common given name in Panama. Data snapshot 2026-10-13.

See how Bíllý parses inside a full name →