Gastelum

surname · Latin script

Meaning: probably a variant of Basque Gaztelu, a habitational name from any of the towns called Gaztelu in Araba, Biscay, Gipuzkoa and Navarre, in Basque Country

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

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

Gastelum is a surname written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • USUnited States1 in 48K(measured from records)
  • DODominican Republic≈1 in 34K
  • CACanada≈1 in 68K

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)

6,880 people, 2010

Sources
225 (measured from records)

Highest-authority source

≈1 in 34K (inferred from the name graph)

Dominican Republic, est.

measured from records inferred from the name graph

Meaning & origin(measured from records)

probably a variant of Basque Gaztelu, a habitational name from any of the towns called Gaztelu in Araba, Biscay, Gipuzkoa and Navarre, in Basque Country. This variant is mainly found in Mexico.

Sources 1

  • Dictionary of American Family Names

Attested across 11 languages in the etymology graph.

Where in the world(measured from records)

Gastelum 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 Gastelum is recorded, by country
CountryMost common spellingSources
US United States—6,8801 in 48K6.9KGastelum225
CA Canada—≈560 est.≈1 in 68K—Gastelum9
DO Dominican Republic—≈310 est.≈1 in 34K—Gastelum5
CO Colombia—≈310 est.≈1 in 160K—Gastelum10
BR Brazil—≈210 est.≈1 in 994K—Gastelum7
CL Chile—≈180 est.≈1 in 102K—Gastelum15
HN Honduras—≈71 est.≈1 in 130K—Gastelum4
MX Mexico#419——744Gastelum174

6,880 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: RENAPO — name frequencies (eduardofv dataset); Census Bureau — Surname Frequency 2010. 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)

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

  • English surname14 spellings in the group

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

    Languages: English, German, Norwegian

    Also written Gastélum, Gastêlum, Gastèlum

  • a separate name4 spellings in the group

    Also written Gastelúm, Gaste-Lum, Gastélum

  • Arabic surname2 spellings in the group

    Most recorded in United States, Spain, Saudi Arabia, Egypt

    Also written Gastélum

  • French surname3 spellings in the group

    Most recorded in United States, France, Canada, Spain

    Also written Gastélum

  • Swahili surname3 spellings in the group

    Most recorded in United States, Kenya, Canada

    Also written Gastélum

  • Hindi surname5 spellings in the group

    Most recorded in United States, Pakistan

    Languages: Hindi, Sinhala, Urdu

    Also written Gastélum

  • Polish surname12 spellings in the group

    Most recorded in United States, Poland, Russia

    Languages: Polish, Russian, Croatian

    Also written Гастелум, Gastélum

28 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)

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

Evidence(measured from records)

Attested in 11 sources across 4 countries.

Official registers attesting Gastelum
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 201020106.9K#5,091
US United StatesCensus Bureau — Surname Frequency 202020206.5K#5,173
US United StatesCensus Bureau — Surname Frequency 200020004.9K#6,410
MX MexicoRENAPO — name frequencies (eduardofv dataset)—744#463
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 3

  • Dictionary of American Family Names
  • 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

Where does the name Gastelum come from?
probably a variant of Basque Gaztelu, a habitational name from any of the towns called Gaztelu in Araba, Biscay, Gipuzkoa and Navarre, in Basque Country. This variant is mainly found in Mexico. Recorded by Dictionary of American Family Names.
How do you pronounce Gastelum?
A machine transcription gives /xastelum/ (IPA) for Spanish.
What does the name Gastelum mean?
Recorded meaning: probably a variant of Basque Gaztelu, a habitational name from any of the towns called Gaztelu in Araba, Biscay, Gipuzkoa and Navarre, in Basque Country.
In which country does Gastelum have the most bearers?
In the United States, the national register counted about 6.9 thousand people named Gastelum, more than in any other country we hold, where it is most often spelled gastelum.
How common is the name Gastelum?
In the United States, the national register counted 6,880 people named Gastelum in 2010, about 1 in 48 thousand residents.
How common is Gastelum compared with other names?
In Mexico, Gastelum is the 419th most common surname of 206,803 surnames recorded there.

What do you want to know about Gastelum?

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

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, “Gastelum” — the 419th most common surname in Mexico. Data snapshot 2026-10-10.

See how Gastelum parses inside a full name →