Erdélyi

surname · Latin script

Meaning: Transylvanian

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

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

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

rarermore common
  • HUHungary≈1 in 4.8K(inferred from the name graph)
  • SKSlovakia≈1 in 98K
  • NONorway1 in 152K

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.

Hungary (inferred from the name graph)

≈2,000 people, est.

Sources
69 (measured from records)

Highest-authority source

≈1 in 4.8K (inferred from the name graph)

Hungary, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin(measured from records)

Transylvanian

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 17 languages in the etymology graph.

Where in the world(measured from records)

Erdélyi 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 Erdélyi is recorded, by country
CountryMost common spellingSources
HU Hungary#294≈2,000 est.≈1 in 4.8K—Erdélyi69
US United States—3121 in 1.1M320—4
SE Sweden—611 in 167K61—3
SK Slovakia—≈56 est.≈1 in 98K—Erdélyi19
ES Spain—391 in 1.3M39—1
NO Norway—361 in 152K36——
RS Serbia—≈27 est.≈1 in 260K—Erdélyi3

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; Census Bureau — Surname Frequency 2020; Skatteverket — Sök hur många som har ett visst namn (living population); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); SSB — Navnesøk (name-search service, living population). 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)

Erdélyi is also recorded as 5 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname9 spellings in the group

    Most recorded in United States, Germany, Canada, Australia

    Languages: English, German, Dutch

    Also written Erdelyi, Erdèlyi

  • a separate name3 spellings in the group

    Also written Erdèlyi, Erdelyi

  • Hungarian surname7 spellings in the group

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

    Languages: Hungarian, Spanish, Portuguese

    Also written Erdelyi

  • Croatian surname7 spellings in the group

    Most recorded in Croatia

    Also written Erdelyi

  • Swedish surname8 spellings in the group

    Most recorded in Sweden

    Languages: Swedish, Norwegian

    Also written Erdelyi

14 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.

Notable people with this name(measured from records)

18001850190019502000János Erdélyi, b. 1814Adalbert Erdely, b. 1891Mihály Erdélyi, b. 1895Stefan Erdélyi, b. 1905Arthur Erdélyi, b. 1908Miklós Erdélyi, b. 1928Lajos Erdélyi, b. 1929Csaba Erdélyi, b. 1946Tommy Ramone, b. 1949Balázs Erdélyi, b. 1990

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).

How to address them(machine-generated)

FormalTisztelt Erdélyi!Dear Erdélyi, (English)
InformalTisztelt Erdélyi!Hello, (English)

Evidence(measured from records)

Attested in 8 sources across 5 countries.

Reference works 2

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • 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 Erdélyi mean, and where does it come from?
Transylvanian Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
How do you pronounce Erdélyi?
A machine transcription gives /ɛrdeːji/ (IPA) for Hungarian.
In which country does Erdélyi have the most bearers?
Mondonomo estimates about 2.0 thousand people named Erdélyi in Hungary, more than in any other country we hold, where it is most often spelled erdélyi.
How common is the name Erdélyi?
In the United States, the national register counted 312 people named Erdélyi in 2010, about 1 in 1.1 million residents.
How common is Erdélyi compared with other names?
In Hungary, Erdélyi is the 294th most common surname of 88,284 surnames recorded there.

What do you want to know about Erdélyi?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/erd%C3%A9lyi

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, “Erdélyi” — the 294th most common surname in Hungary. Data snapshot 2026-10-10.

See how Erdélyi parses inside a full name →