Isidro

loc · Latin script

Meaning: Spanish form of Isidore; from the Egyptian goddess Isis

Recorded as a male name· opposite-gender records fall within measured source noise

Isidro is a name written in the Latin script, with more bearers in the Philippines than in any other country.

rarermore common
  • NINicaragua≈1 in 968(inferred from the name graph)
  • PYParaguay≈1 in 1K
  • PEPeru≈1 in 2.4K

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.

Philippines (inferred from the name graph)

≈49,000 people, est.

Sources
315 (measured from records)

Highest-authority source

≈1 in 968 (inferred from the name graph)

Nicaragua, est.

measured from records inferred from the name graph

Meaning & origin(measured from records)

Spanish form of Isidore; from the Egyptian goddess Isis.

Sources 1

  • Baby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular…

Attested across 17 languages in the etymology graph.

Where in the world(measured from records)

Isidro 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 Isidro is recorded, by country
CountryMost common spellingSources
PH Philippines≈49,000 est.≈1 in 2.2K26K—81
US United States17,5571 in 19K18KIsidro315
ES Spain17,3951 in 2.9K19KIsidro156
PE Peru≈14,000 est.≈1 in 2.4K—Isidro51
AR Argentina≈11,000 est.≈1 in 4.2K472Isidro63
PY Paraguay≈7,100 est.≈1 in 1K—Isidro25
NI Nicaragua≈6,400 est.≈1 in 968—Isidro20
DO Dominican Republic≈5,800 est.≈1 in 1.8K—Isidro37

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: Top 500 First Names in the Philippines (PSA FOI response, tracking; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Nombres más frecuentes (Padrón Municipal); Census Bureau — First Name Frequency 2020 by sex; RENAPER — Apellidos (person counts, national). 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)

Isidro is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • French name4 spellings in the group

    Most recorded in France

    Also written Isïdro, Isídro

  • a separate name2 spellings in the group

    Also written Isidró

54 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)

Isidro is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Spanish, from a reduced form of the personal name Isidoro, Greek Isiddros, meaning ‘gift of Isis’. (Isis was an Egyptian goddess, mother of Homs.) This name was borne by various Christian saints, including the great encyclopedist St. Isidore of Seville (c. 560-636).

    as a nameDictionary of American Family Names

  • In Spanish, a male given name, variant of Isidoro, equivalent to English Isidore

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

  • In Spanish, Variante de Isidoro; del latín Isidorus.

    as a nameDiccionario etimológico de nombres propios

  • Isidoro; gift of Isis

    as a nameDicionario Sefaradi De SobrenomesDictionary Of Sephardic Surnames Inclusive Cristaos-Novos, Conversos, Marranos, Italianos,…

  • In Spanish, Chidro

    as a nameBaby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular…

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)

100012001400160018002000Isidore the Laborer, b. 1079Isidro Barradas, b. 1782Juan de Borbón y Bragança, b. 1822Isidro Ayora, b. 1879Prince Ferdinand of Bavaria, b. 1884Alfonso XIII, b. 1886Isidro Lángara, b. 1912Isidro Sánchez García-Figueras, b. 1936Isidro Ortiz, b. 1963Ibón Cormenzana, b. 1972

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).

Evidence(measured from records)

Attested in 62 sources across 30 countries.

Official registers attesting Isidro
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 202020202.1K#13,624
US United StatesCensus Bureau — Surname Frequency 201020102.1K#14,127
ES SpainINE — Apellidos más frecuentes (Padrón Municipal)—1.8K#2,628
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—1.8K#2,626
US United StatesCensus Bureau — Surname Frequency 200020001.2K#20,367
AR ArgentinaRENAPER — Apellidos (person counts, national)—472—

Reference works 4

  • Dictionary of American Family Names
  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia given-name 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 does the name Isidro mean, and where does it come from?
Spanish form of Isidore; from the Egyptian goddess Isis. Recorded by Baby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular….
In which country does Isidro have the most bearers?
Mondonomo estimates about 49 thousand people named Isidro in the Philippines, more than in any other country we hold.
How common is the name Isidro?
In the United States, the national register counted 17,557 people named Isidro in 2020, about 1 in 19 thousand residents.

What do you want to know about Isidro?

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

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

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, “Isidro”. Data snapshot 2026-10-10.

See how Isidro parses inside a full name →