Bįllÿ
surname · Latin script
Bįllÿ is a surname 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”).
- IEIreland≈1 in 822(inferred from the name graph)
- SGSingapore≈1 in 967
- HKHong Kong≈1 in 1K
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)
- #629 (measured from records)
- Record sources
- 575 (measured from records)
- ≈1 in 822 (inferred from the name graph)
173,433 people, 2020
of 15M given names, spellings grouped
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Ireland, est.
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Billy in US United States, GB United Kingdom, CA Canada and 6 more.
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 23 languages in the etymology graph.
Where in the world
(measured from records)Bįllÿ 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.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| US United States | #257 | 173,433 | 1 in 1.9K | 171K | Billy | 575 |
| GB United Kingdom | #300 | ≈40,000 est. | ≈1 in 1.6K | 17 | Billy | 269 |
| PH Philippines | #821 | ≈31,000 est. | ≈1 in 3.5K | — | Billy | 127 |
| IT Italy | #425 | ≈27,000 est. | ≈1 in 2.3K | — | Billy | 50 |
| CA Canada | #295 | ≈22,000 est. | ≈1 in 1.7K | 4 | Billy | 197 |
| HK Hong Kong | #178 | ≈7,000 est. | ≈1 in 1K | — | Billy | 77 |
| SG Singapore | #105 | ≈6,400 est. | ≈1 in 967 | — | Billy | 80 |
| IE Ireland | #131 | ≈6,300 est. | ≈1 in 822 | 87 | Billy | 103 |
| NZ New Zealand | #232 | ≈4,100 est. | ≈1 in 1.2K | 49 | Billy | 99 |
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; NRS — Baby names Scotland full list (1974–present); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender; CSO — Irish Babies Names (1998–present); DIA — Baby name popularity (1900–present). 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).
Evidence
(measured from records)No register attests this spelling yet
Frequently asked questions
- What does the name Bįllÿ 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.
- In which country does Bįllÿ have the most bearers?
- In the United States, the national register counted about 173 thousand people named Bįllÿ, more than in any other country we hold, where it is most often spelled billy.
- How common is the name Bįllÿ?
- In the United States, the national register counted 173,433 people named Bįllÿ in 2020, about 1 in 1.9 thousand residents.
- How common is Bįllÿ compared with other names?
- In the United States, Bįllÿ is the 257th most common given name of 2,815,431 given names recorded there.
What do you want to know about Bįllÿ?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/b%C4%AFll%C3%BFThe 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, “Bįllÿ” — the 257th most common given name in United States. Data snapshot 2026-10-13.