Кы

patronymic · Cyrillic script

Recorded as a female name· opposite-gender records fall within measured source noise

Кы is a name written in the Cyrillic script, with more bearers in the United States than in any other country.

rarermore common
  • USUnited States1 in 9.9Kas Key(measured from records)
  • NLNetherlands1 in 63Kas Kee
  • NONorway1 in 101Kas Key

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 Кы 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.

United States (measured from records)

33,501 named Key, 2010

2 (measured from records)

recorded for this name

Sources
77 (measured from records)

Highest-authority source

1 in 9.9K (inferred from the name graph)

United States, as Key

measured from records inferred from the name graph

Spellings & scripts(measured from records)

КиCyrillic(measured from records)
KeeLatin(measured from records)

3 other spellings are counted as the same name:

Locally spelled Kee in US United States and Ки in RU Russia.

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 across 3 languages in the etymology graph.

Where in the world(measured from records)

Кы 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 Кы is recorded, by country
CountryMost common spellingSources
US United States33,501as Key1 in 9.9K34KKee27
NL Netherlands274as Kee1 in 63K322—1
RU Russia≈130 est.≈1 in 1.1M—Ки77
BR Brazil114as Ki1 in 1.9M114——
ES Spain90as Key1 in 556K90—1
NO Norway54as Key1 in 101K54—1
FI Finland36as Key1 in 155K83—1
GY Guyana2as Kee1 in 375K2——

33,501 people counted by Census Bureau — Surname Frequency 2010, 2010, counting the spelling key. 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; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); DVV — Nimipalvelu (Finnish name service, per-name lookup); SSB — Navnesøk (name-search service, living population); Guyana — Official List of Electors July 2025. 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)

Кы 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 kv, awn, beard

    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.

Evidence(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Кы 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 Кы have the most bearers?
In the United States, the national register counted about 34 thousand people named Key, more than in any other country we hold.
Where is Кы most common?
No national register we hold counts the spelling Кы itself. The densest figure for its family of spellings is United States's: the national register counts about 1 in 9.9 thousand people named Key.
How common is the name Кы?
In the United States, the national register counted 33,501 people named Key in 2010, about 1 in 9.9 thousand residents.

What do you want to know about Кы?

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/%D0%BA%D1%8B

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, “Кы”. Data snapshot 2026-10-10.

See how Кы parses inside a full name →