Marfan

surname · Latin script

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

/maɾfan/(machine-generated) pronunciation, model-generated

Marfan is a surname written in the Latin script, with more bearers in Croatia than in any other country.

rarermore common
  • HRCroatia1 in 85K(measured from records)
  • GYGuyana1 in 750K
  • CRCosta Rica1 in 1.7M

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.

Croatia (measured from records)

50 people, 2021

Sources
29 (measured from records)

Highest-authority source

1 in 85K (inferred from the name graph)

Croatia

measured from records inferred from the name graph

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

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

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Where in the world(measured from records)

Marfan 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 Marfan is recorded, by country
CountryMost common spellingSources
HR Croatia501 in 85K50——
CR Costa Rica31 in 1.7M3——
US United States≈2 est.≈1 in 180MlistedMarfan29
GY Guyana11 in 750K1—1
GB United Kingdom———Marfan5
JM Jamaica———Marfan1

50 people counted by DZS — Imena i prezimena (per-token lookup form), 2021. 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: the us-wru-surnames-voterfile register; DZS — Imena i prezimena (per-token lookup form); TSE — electoral roll (padrón) names; Guyana — Official List of Electors July 2025. 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)

Marfan is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • a separate name3 spellings in the group

    Also written Marfán, Mar-Fan

23 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.

How to address them(machine-generated)

FormalEstimado/a Marfan,Dear Marfan, (English)
InformalEstimado/a Marfan,Hello, (English)

Evidence(measured from records)

Attested in 5 sources across 4 countries.

Official registers attesting Marfan
CountryRegisterYearCountRank
HR CroatiaDZS — Imena i prezimena (per-token lookup form)202150#13,289
HR CroatiaDZS — Učestalost prezimena (Popis 2021)202150—
CR Costa RicaTSE — electoral roll (padrón) names—3#11,069
GY GuyanaGuyana — Official List of Electors July 202520251#624
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

How do you pronounce Marfan?
A machine transcription gives /maɾfan/ (IPA) for Spanish.
In which country does Marfan have the most bearers?
In Croatia, the national register counted about 50 people named Marfan, more than in any other country we hold.
Where is Marfan most common?
Marfan is densest in Croatia, where the national register counts about 1 in 85 thousand people carrying it.
How common is the name Marfan?
In Croatia, the national register counted 50 people named Marfan in 2021, about 1 in 85 thousand residents.

What do you want to know about Marfan?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

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

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, “Marfan”. Data snapshot 2026-10-10.

See how Marfan parses inside a full name →