Iasón
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Iasón is a given name written in the Latin script, with more bearers in China than in any other country. In the Philippines it is the 16th most common given name.
- NZNew Zealand≈1 in 283as Jason(inferred from the name graph)
- AUAustralia≈1 in 290as Jason
- HKHong Kong≈1 in 294as Jason
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 Iasón 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.
- China (inferred from the name graph)
- #96 (measured from records)
- 7 (measured from records)
- Sources
- 685 (measured from records)
- ≈1 in 283 (inferred from the name graph)
≈4,400,000 named Jason, est.
of 15M given names
recorded for this name
Highest-authority source
New Zealand, est., as Jason
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Jason in US United States, GB United Kingdom, AU Australia and 4 more and Jayson in PH Philippines, ID Indonesia.
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
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested across 3 languages in the etymology graph.
Where in the world(measured from records)
Iasón 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 | ||||
|---|---|---|---|---|---|---|
| CN China | — | ≈4,400,000 est. | ≈1 in 319 | — | Jason | 144 |
| US United States | #44 | 898,652as Jason | 1 in 370 | 898K | Jason | 685 |
| PH Philippines | #16 | ≈190,000 est. | ≈1 in 567 | listed | Jayson | 192 |
| GB United Kingdom | #62 | ≈190,000 est. | ≈1 in 346 | 16 | Jason | 407 |
| ID Indonesia | — | ≈180,000 est. | ≈1 in 1.5K | — | Jayson | 38 |
| CA Canada | #39 | ≈110,000 est. | ≈1 in 336 | 31 | Jason | 373 |
| AU Australia | #39 | ≈88,000 est. | ≈1 in 290 | 106 | Jason | 359 |
| HK Hong Kong | #126 | ≈25,000 est. | ≈1 in 294 | — | Jason | 122 |
| NZ New Zealand | #33 | ≈17,000 est. | ≈1 in 283 | 11 | Jason | 193 |
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: Census Bureau — First Name Frequency 2020 by sex; Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register); NSW BDM — Popular baby names (1952–present); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender; DIA — Baby name popularity (1900–present). 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)
No register attests this spelling yet
Frequently asked questions
- Is Iasón a male or female name?
- Iasón is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- In which country does Iasón have the most bearers?
- Mondonomo estimates about 4.4 million people named Jason in China, more than in any other country we hold.
- How common is the name Iasón?
- In the United States, the national register counted 898,652 people named Jason in 2020, about 1 in 370 residents.
- How common is Iasón compared with other names?
- In the Philippines, Iasón is the 16th most common given name of 486,299 given names recorded there.
What do you want to know about Iasón?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/ias%C3%B3nThe 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, “Iasón” — the 16th most common given name in Philippines. Data snapshot 2026-10-10.