Si-Wan
given name · Latin script
Recorded for both men and women· direction only, no split published
Si-Wan is a given name used for both men and women, written in the Latin script, with more bearers in South Korea than in any other country.
- SESweden1 in 319K(measured from records)
- DKDenmark1 in 534K
- PLPoland1 in 13M
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 Si-Wan itself, the figure is that spelling’s, and it is named. Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- South Korea (inferred from the name graph)
- 2 (measured from records)
- Record sources
- 26 (measured from records)
- 1 in 319K (inferred from the name graph)
≈930 named 시완, est.
recorded for this name
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Sweden
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled 시완 in KR South Korea.
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.
Cited for this meaning 1
Where in the world
(measured from records)Si-Wan 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 | |||
|---|---|---|---|---|---|
| KR South Korea | ≈930 est. | ≈1 in 56K | 223 | 시완 | 26 |
| SE Sweden | 32 | 1 in 319K | 32 | — | — |
| DK Denmark | 11 | 1 in 534K | 8 | — | — |
| NL Netherlands | 8as Sewan | 1 in 2.2M | 8 | — | 1 |
| PL Poland | 3 | 1 in 13M | 3 | — | — |
| GY Guyana | 1as Seewan | 1 in 750K | 1 | — | — |
| LV Latvia | 1as Sewan | 1 in 1.9M | 1 | — | — |
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: Supreme Court — newborn given names; Skatteverket — Sök hur många som har ett visst namn (living population); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); dane.gov.pl — PESEL living persons (names); Guyana — Official List of Electors July 2025; PMLP — Personu vārdi (given names in population 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).
Notable people with this name
(measured from records)- Yim Si-wanb. 1988KRnot in their usual nameSouth Korean singer and actor (born 1989)
- Ji Si-wanb. 1994KRnot in their usual nameSouth Korean baseball player
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)No register attests this spelling yet
Frequently asked questions
- Is Si-Wan a male or female name?
- Si-Wan 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.
- Which countries have the most people named Si-Wan?
- Mondonomo estimates about 928 people named 시완 in South Korea, more than in any other country we hold. After it come Sweden, Denmark, Netherlands and Poland; the country table on this page ranks them.
- Where is Si-Wan most common?
- Measured as a share of residents rather than as a count, Si-Wan is densest in Sweden — about 1 in 319 thousand people — even though South Korea holds more of our records for it.
- How common is the name Si-Wan?
- In Sweden, the national register counted 32 people named Si-Wan, about 1 in 319 thousand residents.
What do you want to know about Si-Wan?
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/si-wanThe 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, “Si-Wan”. Data snapshot 2026-10-13.