Koyi
surname · Latin script
Meaning: Kóyí Interjection : Ah !
Recorded for both men and women· direction only, no split published
/koʊji/(machine-generated) pronunciation, model-generated
Koyi is a surname written in the Latin script, with more bearers in Türkiye than in any other country.
- INIndia1 in 502Kas Koya(measured from records)
- NLNetherlands≈1 in 473K
- TRTürkiye1 in 91as Kaya
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 Koyi 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.
- Türkiye (measured from records)
- 3 (measured from records)
- Sources
- 97 (measured from records)
- ≈1 in 473K (inferred from the name graph)
899,722 named Kaya, 2025
recorded for this name
Highest-authority source
Netherlands, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Koya in IN India, US United States, NG Nigeria.
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(measured from records)
Kóyí Interjection : Ah ! Oh ! Eh bien ! Hélas ! On peut parfois être désemparé devant une situation, dans ce cas on ne peut que constater son impuissance à réagir. Alors, s’écrit : kóyí yán ! Est-ce que cela ne pourrait-il pas se passer autrement ? On se pose des questions sans avoir de réponses.
Sources 1
- Le dictionnaire etymologique des noms propres de personnes au Benin (langues fon et francais)
Where in the world(measured from records)
Koyi 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 | |||
|---|---|---|---|---|---|
| TR Türkiye | 899,722as Kaya | 1 in 91 | 900K | — | 2 |
| US United States | 13,875as Coy | 1 in 24K | 16K | Koya | 97 |
| NG Nigeria | ≈3,800 est. | ≈1 in 56K | — | Koya | 8 |
| IN India | 2,642as Koya | 1 in 502K | 2.6K | Koya | 78 |
| CH Switzerland | 1,940as Kaya | 1 in 4.3K | 1.9K | — | 2 |
| BE Belgium | 1,881as Kaya | 1 in 6.2K | 2.9K | — | — |
| DK Denmark | 1,070as Kaya | 1 in 5.5K | 1.6K | — | — |
| NL Netherlands | ≈37 est. | ≈1 in 473K | 651 | — | 1 |
| GD Grenada | 29as Coy | 1 in 3.9K | 29 | — | — |
899,722 people counted by TÜİK NIP — most used surnames, 2025. 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: TÜİK NIP — most used surnames; Instate — India surnames (clean spellings) from electoral rolls; Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2000; Familienaam.be — Belgian family-name frequency (population register); Statbel — Noms de famille (family names); BFS — Familiennamen der Wohnbevölkerung (surnames); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); Meertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017); Grenada — Consolidated List of Electors December 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)
Koyi is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In nay, basket
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In dag, brew (a beverage) KO (esp. gruel - koko, kukog'li qq.v.)
as a wordDagbani Dictionary CD
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.
Notable people with this name(measured from records)
- John Waluke KoyiKEKenyan politician- Member of parliament for Sirisia Constituency
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).
How to address them(machine-generated)
Evidence(measured from records)
Attested in 10 sources across 7 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| IN India | Instate — India surnames by state (real counts) from electoral rolls | — | 861 | #4,443 |
| IN India | Instate — India surnames (clean spellings) from electoral rolls | — | 237 | #15,775 |
| DK Denmark | Danmarks Statistik — Hvor mange hedder...? (living-population name counts) | — | 5 | #62,156 |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 3 | #154,370 |
| US United States | wru Name Dictionary — US surnames, voter-file supplement (Khanna et al.) | — | — | — |
Reference works 2
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- How do you pronounce Koyi?
- A machine transcription gives /koʊji/ (IPA) for Hindi.
- What does the name Koyi mean?
- Recorded meaning: Kóyí Interjection : Ah !
- In which country does Koyi have the most bearers?
- In Türkiye, the national register counted about 900 thousand people named Kaya, more than in any other country we hold.
- How common is the name Koyi?
- In Türkiye, the national register counted 899,722 people named Kaya in 2025, about 1 in 91 residents.
What do you want to know about Koyi?
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/koyiThe 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, “Koyi”. Data snapshot 2026-10-10.