Кі
org · Cyrillic script
Recorded for both men and women· direction only, no split published
Кі is a name written in the Cyrillic script, with more bearers in the United States than in any other country.
- UAUkraine≈1 in 11M(inferred from the name graph)
- USUnited States1 in 9.9Kas Key
- NLNetherlands1 in 63Kas Kee
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 Кі 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)
- 2 (measured from records)
- Sources
- 77 (measured from records)
- ≈1 in 11M (inferred from the name graph)
33,501 named Key, 2010
recorded for this name
Highest-authority source
Ukraine, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
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)
Кі 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 | |||
|---|---|---|---|---|---|
| US United States | 33,501as Key | 1 in 9.9K | 34K | Kee | 27 |
| NL Netherlands | 274as Kee | 1 in 63K | 322 | — | 1 |
| RU Russia | ≈130 est. | ≈1 in 1.1M | — | Ки | 77 |
| BR Brazil | 114as Ki | 1 in 1.9M | 114 | — | — |
| ES Spain | 90as Key | 1 in 556K | 90 | — | 1 |
| NO Norway | 54as Key | 1 in 101K | 54 | — | 1 |
| FI Finland | 36as Key | 1 in 155K | 83 | — | 1 |
| UA Ukraine | ≈4 est. | ≈1 in 11M | — | Кі | 7 |
| GY Guyana | 2as Kee | 1 in 375K | 2 | — | — |
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).
Notable people with this name(measured from records)
- Francis Scott Keyb. 1779USnot in their usual nameAmerican lawyer and poet who wrote The Star-Spangled Banner (1779-1843)
- Ellen Keyb. 1849SEnot in their usual nameSwedish writer (1849-1926)
- Alexander Keyb. 1904USnot in their usual nameAmerican writer (1904-1979)
- John Keyb. 1961NZnot in their usual namePrime Minister of New Zealand from 2008 to 2016
- Herman Yaub. 1961CNnot in their usual nameHong Kong filmmaker and cinematographer
- Chingmy Yaub. 1968CNnot in their usual nameHong Kong actress
- Keegan-Michael Keyb. 1971USnot in their usual nameAmerican actor and comedian
- James Keyb. 1972GBnot in their usual nameBritish engineer
- Tim Keyb. 1976GBnot in their usual nameBritish actor and comedian
- Ki Sung-yuengb. 1989KRnot in their usual nameSouth Korean association football player
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
Evidence(measured from records)
No register attests this spelling yet
Frequently asked questions
- In which country does Кі 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.
- How common is the name Кі?
- 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 Кі?
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/%D0%BA%D1%96The 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, “Кі”. Data snapshot 2026-10-10.