Saiyun
given name · Latin script
Recorded for both men and women· direction only, no split published
Saiyun is a given name written in the Latin script, with more bearers in Thailand than in any other country.
- THThailand≈1 in 27Kas สายยนต์(inferred from the name graph)
- CRCosta Rica1 in 5.1M
- AUAustralia≈1 in 18Mas Saiyon
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 Saiyun 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.
- Thailand (inferred from the name graph)
- 2 (measured from records)
- Sources
- 47 (measured from records)
- 1 in 5.1M (inferred from the name graph)
≈2,600 named สายยนต์, est.
recorded for this name
Highest-authority source
Costa Rica
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Saiyon in US United States, KE Kenya and สายยนต์ in TH Thailand.
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.
Where in the world(measured from records)
Saiyun 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 | |||
|---|---|---|---|---|---|
| TH Thailand | ≈2,600 est. | ≈1 in 27K | #696,575 | สายยนต์ | 47 |
| US United States | ≈6 est. | ≈1 in 52M | 5 | Saiyon | 7 |
| CR Costa Rica | 1 | 1 in 5.1M | 1 | — | — |
| AU Australia | ≈1 est. | ≈1 in 18M | 1 | — | — |
| IN India | — | — | — | Saiyun | 2 |
| KE Kenya | — | — | — | Saiyon | 4 |
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: SSA — National Baby Names (1880–present); TSE — electoral roll (padrón) names; SA BDM — Popular baby names South Australia (1944–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)
Attested in 2 sources across 2 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| CR Costa Rica | TSE — electoral roll (padrón) names | — | 1 | #52,631 |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Is Saiyun a male or female name?
- Saiyun is recorded for both men and women. We don't publish a percentage split: a record's gender belongs to the person and is attached to every given name on that record, so names in cultures where a name string also carries a parent's or spouse's given name pick up large cross-gender counts.
- In which country does Saiyun have the most bearers?
- Mondonomo estimates about 2.6 thousand people named สายยนต์ in Thailand, more than in any other country we hold.
- Where is Saiyun most common?
- Measured as a share of residents rather than as a count, Saiyun is densest in Costa Rica — about 1 in 5.1 million people — even though Thailand holds more of our records for it.
- How common is the name Saiyun?
- In Costa Rica, the national register counted 1 people named Saiyun, about 1 in 5.1 million residents.
What do you want to know about Saiyun?
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/saiyunThe 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, “Saiyun”. Data snapshot 2026-10-10.