Vichajan

surname · Latin script

Vichajan is a surname written in the Latin script, with more bearers in Thailand than in any other country. Vichajan is also written วิชาชาญ in Thai.

  • THThailand≈1 in 200Kfew recordsas วิชาจารย์(inferred from the name graph)

carrying the name, as Mondonomo estimates it from our sources: no national register counts it in these countries. Where a country counts another spelling of the name rather than Vichajan 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)

≈350 named วิชาจารย์, est.

2 (measured from records)

recorded for this name

Record sources
45 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 203K (inferred from the name graph)

Thailand, est., as วิชาจารย์

measured from records inferred from the name graph

Vichajan in other scripts: Thai and Latin

(measured from records)
วิชาชาญVichajan in Thai(measured from records)
WichachanVichajan in Latin(measured from records)

Locally spelled วิชาจารย์ 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.

Attested in 1 language in the etymology graph.

Where the surname Vichajan is found

(measured from records)

Vichajan 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.

Where Vichajan is recorded, by country
CountryMost common spellingSources
TH Thailand≈350 est.≈1 in 203Kregister #612,061วิชาจารย์45

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.

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

None of the official registers or reference works in our corpus lists Vichajan under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Frequently asked questions

In which country does Vichajan have the most bearers?
Mondonomo estimates about 352 people named วิชาจารย์ in Thailand, more than in any other country we hold.
How common is the name Vichajan?
Mondonomo estimates about 350 people in Thailand have วิชาจารย์ as their first surname, about 1 in 203 thousand residents. No national register counts it there; the figure is ours, calibrated against the registers that do.

What do you want to know about Vichajan?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/vichajan

The 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, “Vichajan”. Data snapshot 2026-10-13.

See how Vichajan parses inside a full name →