Diez

surname · Latin script

Meaning: Apokopierte Schreibung zu Die(t)ze; demonstriert Auslaut-Varianz tz/z

(measured from records)Officially recorded in 21 countries · latest register: Census Bureau, 2020

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

Diez is a surname written in the Latin script, with more bearers in Spain than in any other country, where it is the 73rd most common surname.

rarermore common
  • ESSpain1 in 836(measured from records)
  • UYUruguay1 in 2.9K
  • ARArgentina1 in 3.9K

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 Diez 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.

Spain (measured from records)

59,840 people

3 (measured from records)

recorded for this name

Record sources
271 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 836 (inferred from the name graph)

Spain

measured from records inferred from the name graph

Spellings & scripts

(measured from records)
DiezLatin(measured from records)
ДицCyrillic(measured from records)
디에스Hangul(measured from records)

4 other spellings are 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

(measured from records)
recorded in German

Apokopierte Schreibung zu Die(t)ze; demonstriert Auslaut-Varianz tz/z. Bearer count: 875.

Cited for this meaning 1

  • Deutscher Familiennamenatlas, Band 2: Graphematik/Phonologie der Familiennamen II, Konsonantismus

Attested across 3 languages in the etymology graph.

Where in the world

(measured from records)

Diez 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 Diez is recorded, by country
CountryMost common spellingSources
ES Spain#7359,8401 in 83660KDiez209
US United States—18,720as Dietz1 in 18K19KDiez271
AR Argentina#36111,5291 in 3.9K12KDiez115
PH Philippines#853≈8,700 est.≈1 in 13K—Diez66
ID Indonesia—≈4,400 est.≈1 in 60K—Diez17
UY Uruguay#4371,1601 in 2.9K1.2KDiez42
LA Laos#642≈800 est.≈1 in 9.3K—Diez4

59,840 people counted by INE — Padrón per-token widgets (current living counts, given + apellidos). 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: INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); RENAPER — Apellidos (person counts, national); Census Bureau — Surname Frequency 2010; 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)

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

  • French surname4 spellings in the group

    Most recorded in France, Spain, Belgium

    Languages: French, Catalan

    Also written Díez, Diéz

  • a separate name7 spellings in the group

    Also written Dìez, Diéz, Díez

  • Italian surname3 spellings in the group

    Most recorded in Spain, Italy, Philippines, United States

    Also written Díez, Dïez

  • Swedish surname9 spellings in the group

    Most recorded in Spain, Denmark, Sweden, United States

    Languages: Swedish, Danish, Norwegian

    Also written Díez

  • Polish surname3 spellings in the group

    Most recorded in Spain, Poland, United States, Philippines

    Also written Díez, Diëz

  • Bulgarian surname17 spellings in the group

    Most recorded in Spain, Croatia, United States, Philippines

    Languages: Bulgarian, Croatian, Serbian

    Also written Díez, Диц, Диез, Dic, Diéz

  • a separate surname2 spellings in the group

    Most recorded in United States, Spain, Ecuador, Bolivia

    Also written Díez

43 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)

Diez is also recorded in 4 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Latvian, Use to add uncertainty to a statement

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

  • In Romanian, sharp (symbol)

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

  • In Romanian, DIÉZ, diezi, s. m. Semn muzical convențional pus înaintea unei note sau la începutul portativului, care arată că nota respectivă trebuie executată cu un semiton mai sus; p. ext. interval de un semiton cu care se ridică o notă sau un șir de note. ♦ (Adjectival; despre note) Ridicat cu un semiton. [Pr.: di-ez].

    as a wordDEX online (dexonline.ro) - DEX '96 / DEX '98 definitions with etymology

  • In Croatian, njemački filolog, romanist, utemeljitelj poredbene romanistike

    as a wordHrvatski jezični portal (HJP) dictionary export

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)
175018001850190019502000Friedrich Christian Diez, b. 1794Juan Pablo Duarte, b. 1813Fritz Diez, b. 1901Karlheinz Diez, b. 1954Xebe Diez, b. 1955Nicolás Diez, b. 1977Carlos Martínez, b. 1986Álex Menéndez, b. 1991Daniel Jaramillo, b. 1991Steven Diez, b. 1991

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 Diez,Dear Diez, (English)
InformalEstimado/a Diez,Hello, (English)

Evidence

(measured from records)

30 registers and reference works attest this spelling, across 21 countries.

Reference works 3

  • 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 are other forms of the name Diez?
In the etymology graph, Decena is a form of the same name in other languages.
What does the name Diez mean?
Recorded meaning: Apokopierte Schreibung zu Die(t)ze; demonstriert Auslaut-Varianz tz/z.
How do you pronounce Diez?
A machine transcription gives /djeθ/ (IPA) for Spanish.
In which country does Diez have the most bearers?
In Spain, the national register counted about 60 thousand people named Diez, more than in any other country we hold, where it is most often spelled diez.
Where is Diez most common?
Diez is densest in Spain, where the national register counts about 1 in 836 people carrying it.
How common is the name Diez?
In Spain, the national register counted 59,840 people named Diez, about 1 in 836 residents.
How common is Diez compared with other names?
In Spain, Diez is the 73rd most common surname of 395,154 surnames recorded there.

What do you want to know about Diez?

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

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, “Diez” — the 73rd most common surname in Spain. Data snapshot 2026-10-13.

See how Diez parses inside a full name →