Olariaga
surname · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
Olariaga is a surname written in the Latin script, with more bearers in Argentina than in any other country.
- ARArgentina1 in 25K(measured from records)
- UYUruguay1 in 14K
- ESSpain1 in 242K
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)
- Sources
- 44 (measured from records)
- 1 in 14K (inferred from the name graph)
1,826 people
Highest-authority source
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)
Olariaga 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.
| Country | Most common spelling | Sources | |||
|---|---|---|---|---|---|
| AR Argentina | 1,826 | 1 in 25K | 1.8K | Olariaga | 42 |
| UY Uruguay | 245 | 1 in 14K | 245 | Olariaga | 13 |
| ES Spain | 207 | 1 in 242K | 207 | Olariaga | 44 |
| BR Brazil | ≈100 est. | ≈1 in 2.1M | — | Olariaga | 4 |
| US United States | ≈11 est. | ≈1 in 31M | listed | Olariaga | 28 |
| VE Venezuela | ≈3 est. | ≈1 in 11M | — | Olariaga | 3 |
1,826 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 Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); the us-wru-surnames-voterfile 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).
Evidence(measured from records)
Attested in 5 sources across 4 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| AR Argentina | RENAPER — Apellidos (person counts, national) | — | 1.8K | — |
| UY Uruguay | INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public) | — | 245 | — |
| ES Spain | INE — Apellidos más frecuentes (Padrón Municipal) | — | 207 | #16,135 |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 207 | #16,081 |
| US United States | wru Name Dictionary — US surnames, voter-file supplement (Khanna et al.) | — | — | — |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- In which country does Olariaga have the most bearers?
- In Argentina, the national register counted about 1.8 thousand people named Olariaga, more than in any other country we hold, where it is most often spelled olariaga.
- Where is Olariaga most common?
- Measured as a share of residents rather than as a count, Olariaga is densest in Uruguay — about 1 in 14 thousand people — even though Argentina holds more of our records for it.
- How common is the name Olariaga?
- In Argentina, the national register counted 1,826 people named Olariaga, about 1 in 25 thousand residents.
What do you want to know about Olariaga?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/olariagaThe same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 1,000 requests a day, and bulk access is licensed separately.
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, “Olariaga”. Data snapshot 2026-10-10.