Jainak

surname · Latin script

Recorded for both men and women· direction only, no split published

Jainak is a surname written in the Latin script, with more bearers in Thailand than in any other country.

rarermore common
  • THThailand≈1 in 132Kas ใจหนัก(inferred from the name graph)
  • USUnited States≈1 in 108Mas Chainak

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 Jainak 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)

≈520 named ใจหนัก, est.

2 (measured from records)

recorded for this name

Sources
49 (measured from records)

Highest-authority source

≈1 in 132K (inferred from the name graph)

Thailand, est., as ใจหนัก

measured from records inferred from the name graph

Spellings & scripts(measured from records)

JainakLatin(measured from records)
ใจหนักThai(measured from records)

One other spelling is counted as the same name:

Locally spelled ใจหนัก in TH Thailand and Chainak in US United States.

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)

Jainak 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 Jainak is recorded, by country
CountryMost common spellingSources
TH Thailand≈520 est.≈1 in 132K#1,041,975ใจหนัก49
US United States≈3 est.≈1 in 108M—Chainak5
IN India——2—3

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: naampy — India given names from state electoral rolls (in-rolls). 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 1 country.

Official registers attesting Jainak
CountryRegisterYearCountRank
IN IndiaInstate — India surnames by state (real counts) from electoral rolls—4#232,963

Register rows as of the 2026-10-09 data build.

Frequently asked questions

In which country does Jainak have the most bearers?
Mondonomo estimates about 524 people named ใจหนัก in Thailand, more than in any other country we hold.
How common is the name Jainak?
Mondonomo estimates about 520 people in Thailand have ใจหนัก as their first surname, about 1 in 132 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 Jainak?

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

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, “Jainak”. Data snapshot 2026-10-10.

See how Jainak parses inside a full name →