Darby
loc · Latin script
Meaning: from Derby or West Derby, or from Irish Gaelic O Diarmada
Recorded for both men and women· direction only, no split published
Darby is a name written in the Latin script, with more bearers in Brazil than in any other country.
- USUnited States1 in 34K(measured from records)
- CACanada≈1 in 52K
- AUAustralia≈1 in 55K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Darby itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.
- Brazil (measured from records)
- 2 (measured from records)
- Sources
- 424 (measured from records)
- 1 in 34K (inferred from the name graph)
876,593 named Davi, 2022
recorded for this name
Highest-authority source
United States
measured from records inferred from the name graph
Spellings & scripts(measured from records)
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)
- Derbyor(measured from records)
- Irish GaelicO(measured from records)
from Derby or West Derby, or from Irish Gaelic O Diarmada
Sources 1
- Encyclopedia of surnames [the complete companion to tracing your names history]
Where in the world(measured from records)
Darby 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 | |||
|---|---|---|---|---|---|
| BR Brazil | 876,593as Davi | 1 in 242 | 877K | — | 1 |
| US United States | 9,906 | 1 in 34K | 19K | Darby | 424 |
| CA Canada | ≈730 est. | ≈1 in 52K | 4 | — | 116 |
| GB United Kingdom | ≈680 est. | ≈1 in 97K | 4 | Darby | 212 |
| IT Italy | ≈480 est. | ≈1 in 131K | 6 | — | 11 |
| AU Australia | ≈470 est. | ≈1 in 55K | 3 | — | 140 |
| GY Guyana | 65as Davi | 1 in 12K | 65 | — | 2 |
876,593 people counted by IBGE — names by decade (Kaggle mirror), 2022. 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 — names by decade (Kaggle mirror); Census Bureau — First Name Frequency 2020 by sex; Census Bureau — Surname Frequency 2010; NRS — Baby names Scotland full list (1974–present); Guyana — Official List of Electors July 2025; ISTAT — Contanomi newborn per-name series (1999–2024, JSONP backend); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender; Australian national given names (aggregated state BDM). 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 recorded senses(measured from records)
Darby 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 English, Form of Dermot, found in Limerick and Tipperary; used as a Christian name in Ireland.
as a nameIrish first names
Transferred use of the surname, in origin a local name from the city of Derby or the district of West Derby near Liverpool. These are so called from Old Norse diur ‘deer’ + byr ‘settlement’. In Ireland this name has been used as an Anglicized form of Gaelic Diarmaid (see Dermot).
as a nameA concise dictionary of first names
A form of Dermot which occurred in Limerick and Tipperary. It had spread from Ireland to England as early as 1560. Henriette Templeton used the name in her novel Darby O’Gill and the Good People, released as a Walt Disney film called Darby O’Gill and the Little People. Darby O’Drive was also a character in William Carleton’s novel Valentine McClutchey (1845).
as a nameIrish first names
In English, A specialized tool used to smooth and level the surface of wet concrete, consisting of a stiff wedge or triangle of wood or metal.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In English, from Derby; first attested Roger de Derby 1160–82 RegAntiquiss
as a nameA Dictionary of English Surnames
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)
- Mary Robinsonb. 1758GBnot in their usual nameEnglish poet, novelist, dramatist, actress (1758–1800)
- John Nelson Darbyb. 1800GBBritish Bible teacher, considered to be the father of modern Dispensationalism and Futurism. (1800-1882)
- Ken Darbyb. 1909USAmerican composer (1909-1992)
- Kim Darbyb. 1947USAmerican actress
- Darby Lloyd Rainsb. 1947USAmerican pornographic actress
- Darby Crashb. 1958USAmerican musician (1958–1980)
- Darby Stanchfieldb. 1971USAmerican actress
- Rhys Darbyb. 1974NZNew Zealand actor, comedian and voice actor
- Stephen Darbyb. 1988GBEnglish association football player
- Darby Campb. 2007USAmerican 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)
Attested in 47 sources across 24 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 19K | #1,921 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 18K | #1,951 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 18K | #1,850 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 4
- The Oxford Dictionary of Family Names in Britain and Ireland
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- 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
- What does the name Darby mean, and where does it come from?
- from Derby or West Derby, or from Irish Gaelic O Diarmada Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
- In which country does Darby have the most bearers?
- In Brazil, the national register counted about 877 thousand people named Davi, more than in any other country we hold.
- Where is Darby most common?
- Measured as a share of residents rather than as a count, Darby is densest in the United States — about 1 in 34 thousand people — even though Brazil holds more of our records for it.
- How common is the name Darby?
- In the United States, the national register counted 9,906 people named Darby in 2020, about 1 in 34 thousand residents.
What do you want to know about Darby?
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/darbyThe 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, “Darby”. Data snapshot 2026-10-10.