Wanachai
surname · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Wanachai is a surname written in the Latin script, with more bearers in Thailand than in any other country, where it is the 60th most common given name.
- THThailand≈1 in 1.1Kas วันชัย(inferred from the name graph)
- SESweden1 in 63Kas Wan
- USUnited States1 in 128Kas Wan
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 Wanachai 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
- 134 (measured from records)
- ≈1 in 1.1K (inferred from the name graph)
≈62,000 named วันชัย, est.
recorded for this name
Highest-authority source
Thailand, est., as วันชัย
measured from records inferred from the name graph
Spellings & scripts(measured from records)
28 other spellings are counted as the same name:
Locally spelled วันชัย in TH Thailand, ID Indonesia, Wanchai in US United States, SE Sweden and Wan in CN China.
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 in 1 language in the etymology graph.
Where in the world(measured from records)
Wanachai 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 | #60 | ≈62,000 est. | ≈1 in 1.1K | #589,518 | วันชัย | 134 |
| US United States | — | 2,599as Wan | 1 in 128K | 7.4K | Wanchai | 65 |
| ID Indonesia | — | ≈2,100 est. | ≈1 in 129K | — | วันชัย | 1 |
| CN China | — | ≈480 est. | ≈1 in 2.9M | — | Wan | 25 |
| BR Brazil | — | 301as Wan | 1 in 703K | 1.4K | — | — |
| SE Sweden | — | 163as Wan | 1 in 63K | 163 | Wanchai | 4 |
| DK Denmark | — | 20as Wan | 1 in 293K | 39 | — | — |
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; Census Bureau — Surname Frequency 2020; IBGE — names by decade (Kaggle mirror); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Skatteverket — Sök hur många som har ett visst namn (living population); Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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
- In which country does Wanachai have the most bearers?
- Mondonomo estimates about 62 thousand people named วันชัย in Thailand, more than in any other country we hold.
- How common is the name Wanachai?
- In the United States, the national register counted 2,599 people named Wan in 2020, about 1 in 128 thousand residents.
- How common is Wanachai compared with other names?
- In Thailand, Wanachai is the 60th most common given name of 488,147 given names recorded there.
What do you want to know about Wanachai?
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/wanachaiThe 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, “Wanachai” — the 60th most common given name in Thailand. Data snapshot 2026-10-10.