Keïssy
given name · Latin script
A female name· listed as female by the registers that count names by sex
(measured from records)Officially recorded in 5 countries · latest register: INSEE, 2024
Keïssy is a female given name written in the Latin script, with more bearers in Brazil than in any other country: 230 people, counted by IBGE in 2022.
- CRCosta Rica1 in 40K(measured from records)
- UYUruguay1 in 117K
- BRBrazil1 in 921K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). 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.
- Brazil (measured from records)
- Record sources
- 57 (measured from records)
- 1 in 40K (inferred from the name graph)
230 people, 2022
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Costa Rica
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Keissy in FR France.
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 12 languages in the etymology graph.
Where in the world
(measured from records)Keïssy 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 | |||
|---|---|---|---|---|---|
| BR Brazil | 230 | 1 in 921K | 230 | — | — |
| CR Costa Rica | 129 | 1 in 40K | 129 | — | — |
| UY Uruguay | 29 | 1 in 117K | 29 | — | — |
| FR France | ≈13 est. | ≈1 in 5.3M | 440 | Keissy | 57 |
| CL Chile | — | — | 15 | — | — |
230 people counted by IBGE — names by decade (Kaggle mirror), 2022. 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: INSEE — Fichier des prénoms (1900–2024); IBGE — names by decade (Kaggle mirror); TSE — electoral roll (padrón) names; INE Uruguay — Nombres más frecuentes 1902–2024 (Tableau Public); SRCEI — Nombres más comunes (guaguas, 1920–2021). 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).
How to address them
(machine-generated)A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.
Evidence
(measured from records)5 registers and reference works attest this spelling, across 5 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Is Keïssy a male or female name?
- Keïssy is a female name. National registers that list it by sex list it as female: France (INSEE, 2024).
- Which countries have the most people named Keïssy?
- In Brazil, the national register counted about 230 people named Keïssy, more than in any other country we hold. After it come Costa Rica, Uruguay and France; the country table on this page ranks them.
- Where is Keïssy most common?
- Measured as a share of residents rather than as a count, Keïssy is densest in Costa Rica — about 1 in 40 thousand people — even though Brazil holds more of our records for it.
- How common is the name Keïssy?
- In Brazil, the national register counted 230 people named Keïssy in 2022, about 1 in 921 thousand residents.
What do you want to know about Keïssy?
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/ke%C3%AFssyThe 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, “Keïssy” — ranked 16091st in Brazil (IBGE, 2022). Data snapshot 2026-10-13.