kAstIn

surname · Latin script

(measured from records)Officially recorded in 5 countries · latest register: dane.gov.pl, 2026

/kastin/(machine-generated) Indonesian · model-generated

Say it inExplore pronunciation →

kAstIn is a surname written in the Latin script, with more bearers in the United States than in any other country: 100 people, counted by the Census Bureau in 2010. kAstIn is also written Кастин in Cyrillic.

  • USUnited States1 in 3.3M(measured from records)
  • PLPoland1 in 19M
  • RURussia≈1 in 7Mfew recordsas Кастин

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 kAstIn 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.

United States (measured from records)

100 people, 2010

2 (measured from records)

recorded for this name

Record sources
37 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 3.3M (inferred from the name graph)

United States

measured from records inferred from the name graph

kAstIn in other scripts: Cyrillic

(measured from records)
kAstInLatin(measured from records)
КастинkAstIn in Cyrillic(measured from records)

Locally spelled Кастин in RU Russia, UA Ukraine.

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.

How to pronounce kAstIn

  • Indonesian:/kastin/(machine-generated) model-generated

Readings marked model-generated were transcribed by a model; the others are quoted from the dictionary named.

Meaning & origin

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Where the surname kAstIn is found

(measured from records)

kAstIn 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 kAstIn is recorded, by country
CountryMost common spellingSources
US United States1001 in 3.3M133kAstIn10
RU Russia≈21 est.≈1 in 7M—Кастин37
UA Ukraine≈2 est.≈1 in 22M—Кастин4
PL Poland21 in 19M2——
CR Costa Rica——1——

100 people counted by Census Bureau — Surname Frequency 2010, 2010, counting the spelling kastin. 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 — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; dane.gov.pl — PESEL living persons (surnames); TSE — electoral roll (padrón) names. 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).

Other recorded senses

(measured from records)

kAstIn is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Finnish, genitive singular of kasti

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

How to address them

(machine-generated)
FormalDear Ms Kastin,
InformalHi Kastin,

Evidence

(measured from records)

10 registers and reference works attest this spelling, across 5 countries.

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

Frequently asked questions

How do you pronounce kAstIn?
In Indonesian /kastin/. Transcriptions are machine-generated except where a dictionary is named.
Which countries have the most people with the surname kAstIn?
In the United States, the national register counted about 100 people named kAstIn, more than in any other country we hold, where it is most often spelled kAstIn. After it come Russia, Ukraine and Poland; the country table on this page ranks them.
Where is kAstIn most common?
kAstIn is densest in the United States, where the national register counts about 1 in 3.3 million people carrying it.
How common is the name kAstIn?
In the United States, the national register counted 100 people named kAstIn in 2010, about 1 in 3.3 million residents.

What do you want to know about kAstIn?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

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

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, “kAstIn” — ranked 132523rd in the United States (Census Bureau). Data snapshot 2026-10-13.

See how kAstIn parses inside a full name →