Isasa

surname · Latin script

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

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

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

rarermore common
  • ARArgentina1 in 72K(measured from records)
  • UYUruguay1 in 13K
  • PYParaguay≈1 in 31K

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)

632 people

Sources
76 (measured from records)

Highest-authority source

1 in 13K (inferred from the name graph)

Uruguay

measured from records inferred from the name graph

Meaning & origin

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Where in the world(measured from records)

Isasa 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 Isasa is recorded, by country
CountryMost common spellingSources
AR Argentina—6321 in 72K632Isasa36
ES Spain—4501 in 111K450Isasa76
UY Uruguay—2661 in 13K266Isasa23
PY Paraguay#698≈230 est.≈1 in 31K—Isasa10
CO Colombia—≈150 est.≈1 in 322K1Isasa24

632 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: RENAPER — Apellidos (person counts, national); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); the co-datosgov-candidates register. 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)

Isasa is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • Lao surname5 spellings in the group

    Most recorded in Laos, Thailand

    Languages: Lao, Thai

    Also written อิซาสะ, Isasah, อซาสะ

25 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)

180018501900195020002050Santos Isasa y Valseca, b. 1822José Sixto García Isasa, b. 1825Ricardo Isasa, b. 1847Carmelo Borobia, b. 1935Xavier Isasa, b. 1966Amaiur Sarriegi, b. 2000Xabier Isasa, b. 2001

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

Evidence(measured from records)

Attested in 13 sources across 11 countries.

Reference works 1

  • 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

How do you pronounce Isasa?
A machine transcription gives /isasa/ (IPA) for Spanish.
In which country does Isasa have the most bearers?
In Argentina, the national register counted about 632 people named Isasa, more than in any other country we hold, where it is most often spelled isasa.
Where is Isasa most common?
Measured as a share of residents rather than as a count, Isasa is densest in Uruguay — about 1 in 13 thousand people — even though Argentina holds more of our records for it.
How common is the name Isasa?
In Argentina, the national register counted 632 people named Isasa, about 1 in 72 thousand residents.
How common is Isasa compared with other names?
In Paraguay, Isasa is the 698th most common surname of 30,328 surnames recorded there.

What do you want to know about Isasa?

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

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, “Isasa” — the 698th most common surname in Paraguay. Data snapshot 2026-10-10.

See how Isasa parses inside a full name →