Diaz

surname · Latin script

Meaning: son of Diego or Diago; a Spanish personal name of uncertain origin

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

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

Diaz is a surname written in the Latin script, with more bearers in Argentina than in any other country, where it is the 6th most common surname.

rarermore common
  • UYUruguay1 in 45(measured from records)
  • PRPuerto Rico≈1 in 80
  • DODominican Republic≈1 in 82

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.

Argentina (measured from records)

458,017 people

#47 (measured from records)

of 19M surnames

5 (measured from records)

recorded for this name

Sources
560 (measured from records)

Highest-authority source

1 in 45 (inferred from the name graph)

Uruguay

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

DiazLatin(measured from records)
ДиазCyrillic(measured from records)
ΔιαςGreek(measured from records)
დიასGeorgian(measured from records)
디아스Hangul(measured from records)

One other spelling is counted as the same name:

Locally spelled Díaz in UY Uruguay, DO Dominican Republic.

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)

son of Diego or Diago; a Spanish personal name of uncertain origin.

Sources 1

  • Encyclopedia of surnames [the complete companion to tracing your names history]

Attested across 20 languages in the etymology graph.

Where in the world(measured from records)

Diaz 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 Diaz is recorded, by country
CountryMost common spellingSources
AR Argentina#6458,0171 in 99458KDiaz189
CO Colombia#10≈450,000 est.≈1 in 1095.4KDiaz242
ES Spain#13350,2461 in 143350KDiaz287
US United States#50347,6361 in 957357KDiaz560
VE Venezuela#9≈300,000 est.≈1 in 942.6KDiaz140
DO Dominican Republic#349≈130,000 est.≈1 in 82—Díaz141
UY Uruguay#24674,9401 in 4575KDíaz130
PR Puerto Rico#13≈40,000 est.≈1 in 80—Diaz106

458,017 people counted by RENAPER — Apellidos (person counts, national). 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; RENAPER — Apellidos (person counts, national); asosab — SAIME ID-card names (1896–1996); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); RNEC — Nombres más registrados (newborn name statistics); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public). 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)

Diaz is also recorded as 7 other names, grouped separately because the records behind them do not connect to the one described above.

  • French surname24 spellings in the group

    Most recorded in France, United States, Peru, Spain

    Languages: French, Catalan

    Also written Díaz, Dìaz, Diáz, Diàz, Dïäz

  • a separate name11 spellings in the group

    Also written Dîaz, Dĩaz, Diáz, Díaz, Diàz

  • Lao surname10 spellings in the group

    Most recorded in Laos, Chile, United States, Peru

    Also written Díaz, Dìaz, Diáz, Dïäz, Díáz

  • Polish surname13 spellings in the group

    Most recorded in United States, Poland, Spain, Peru

    Also written Díaz, Diãz, Diąz, Díáz, Dïąẕ

  • Croatian surname21 spellings in the group

    Most recorded in Spain, Peru, United States, Argentina

    Languages: Croatian, Bulgarian, Serbian

    Also written Díaz, Диаз, Diáz, Díáz, Dìàź

  • Hindi surname38 spellings in the group

    Most recorded in India, Thailand, United States, Peru

    Languages: Hindi, Thai, Lao

    Also written Dosi, Easy, Dias, Díaz, Deco

  • Romanian surname6 spellings in the group

    Most recorded in Spain, United States, Peru, Philippines

    Also written Díaz, Dìaz, Dìàz, Ďiäz, Díáz

84 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.

Other recorded senses(measured from records)

Diaz is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Filipino, a common surname from Spanish [in turn originating as a patronymic], equivalent to Spanish Díaz, mostly concentrated in Metro Manila, Cavite, Bulacan, Rizal and Laguna

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In bik, a surname from Spanish [in turn originating as a patronymic], equivalent to Spanish Díaz, mostly concentrated in Camarines Sur

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

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)

18001850190019502000Porfirio Díaz, b. 1830Manuel Azaña, b. 1880Gustavo Díaz Ordaz, b. 1911Cameron Diaz, b. 1972Fernando Alonso, b. 1981Luis Alberto Suárez, b. 1987Raquel Diaz, b. 1990Hidilyn Diaz, b. 1991Luis Díaz, b. 1997Brahim Abdelkader Díaz, b. 1999

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)

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

Evidence(measured from records)

Attested in 68 sources across 41 countries.

Official registers attesting Diaz
CountryRegisterYearCountRank
AR ArgentinaRENAPER — Apellidos (person counts, national)—458K—
US United StatesCensus Bureau — Surname Frequency 20202020357K#52
ES SpainINE — Apellidos más frecuentes (Padrón Municipal)—350K#14
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—350K#14
US United StatesCensus Bureau — Surname Frequency 20102010348K#55
US United StatesCensus Bureau — Surname Frequency 20002000252K#73
UY UruguayINE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public)—75K—
CO ColombiaColombia — Función Pública SIGEP II public-servant name corpus (datos.gov.co)—225#11

Reference works 8

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 Diaz mean, and where does it come from?
son of Diego or Diago; a Spanish personal name of uncertain origin. Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
How do you pronounce Diaz?
A machine transcription gives /dias/ (IPA) for Spanish.
In which country does Diaz have the most bearers?
In Argentina, the national register counted about 458 thousand people named Diaz, more than in any other country we hold, where it is most often spelled diaz.
Where is Diaz most common?
Measured as a share of residents rather than as a count, Diaz is densest in Uruguay — about 1 in 45 people — even though Argentina holds more of our records for it.
How common is the name Diaz?
In Argentina, the national register counted 458,017 people named Diaz, about 1 in 99 residents.
How common is Diaz compared with other names?
In Argentina, Diaz is the 6th most common surname of 398,256 surnames recorded there.

What do you want to know about Diaz?

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

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, “Diaz” — the 6th most common surname in Argentina. Data snapshot 2026-10-10.

See how Diaz parses inside a full name →