Duğan
surname · Latin script
Duğan is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: Reduced Anglicized form of Irish Ó Dubhagáin (“descendant of Dubhagán”), a personal name based on a double diminutive of dubh (“black”).
- TRTürkiye≈1 in 25K(inferred from the name graph)
- USUnited States1 in 16K
- NONorway1 in 31K
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)
- Record sources
- 72 (measured from records)
- 1 in 16K (inferred from the name graph)
21,455 people, 2010
corpus datasets behind its best-documented spelling
strongest: highest-authority source
United States
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Dugan in US United States, NO Norway, FI Finland.
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)Reduced Anglicized form of Irish Ó Dubhagáin (“descendant of Dubhagán”), a personal name based on a double diminutive of dubh (“black”).
Cited for this meaning 2
- The Oxford Dictionary of Family Names in Britain and Ireland
- Wiktionary
Attested across 15 languages in the etymology graph.
Where in the world
(measured from records)Duğan 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 | 21,455 | 1 in 16K | 21K | Dugan | 72 |
| TR Türkiye | ≈3,200 est. | ≈1 in 25K | — | Duğan | 33 |
| NO Norway | 176 | 1 in 31K | 176 | Dugan | 4 |
| HR Croatia | 107 | 1 in 40K | 107 | — | — |
| FI Finland | 46 | 1 in 121K | 46 | Dugan | 4 |
21,455 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; SSB — Navnesøk (name-search service, living population); DZS — Imena i prezimena (per-token lookup form); DVV — Nimipalvelu (Finnish name service, per-name lookup). 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)2 registers and reference works attest this spelling, across 0 countries.
Reference works 2
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Nişanyan Adlar (Turkish given-name national-registry frequency)
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 Duğan mean, and where does it come from?
- Reduced Anglicized form of Irish Ó Dubhagáin (“descendant of Dubhagán”), a personal name based on a double diminutive of dubh (“black”). Recorded by The Oxford Dictionary of Family Names in Britain and Ireland and Wiktionary.
- In which country does Duğan have the most bearers?
- In the United States, the national register counted about 21 thousand people named Duğan, more than in any other country we hold, where it is most often spelled dugan.
- Where is Duğan most common?
- Duğan is densest in the United States, where the national register counts about 1 in 16 thousand people carrying it.
- How common is the name Duğan?
- In the United States, the national register counted 21,455 people named Duğan in 2010, about 1 in 16 thousand residents.
What do you want to know about Duğan?
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/du%C4%9FanThe 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, “Duğan”. Data snapshot 2026-10-13.