Louisy
surname · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
/luii/(machine-generated) pronunciation, model-generated
Louisy is a surname written in the Latin script, with more bearers in France than in any other country.
- FRFrance≈1 in 160K(inferred from the name graph)
- DMDominica1 in 1.9K
- KNSt. Kitts & Nevis1 in 27K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- France (inferred from the name graph)
- Sources
- 151 (measured from records)
- 1 in 1.9K (inferred from the name graph)
≈430 people, est.
Highest-authority source
Dominica
measured from records inferred from the name graph
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Where in the world(measured from records)
Louisy 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 | |||
|---|---|---|---|---|---|
| FR France | ≈430 est. | ≈1 in 160K | 73 | Louisy | 151 |
| US United States | ≈110 est. | ≈1 in 3.1M | listed | Louisy | 98 |
| GB United Kingdom | ≈61 est. | ≈1 in 1.1M | — | Louisy | 47 |
| DM Dominica | 40 | 1 in 1.9K | 40 | — | 1 |
| BR Brazil | ≈38 est. | ≈1 in 5.5M | 278 | — | — |
| GY Guyana | 8 | 1 in 94K | 8 | Louisy | 1 |
| KN St. Kitts & Nevis | 2 | 1 in 27K | 2 | — | 2 |
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 noms de famille (1891–2000); the us-wru-surnames-voterfile register; IBGE — names by decade (Kaggle mirror); Dominica — Revised List of Electors May 2025; Guyana — Official List of Electors July 2025; St Kitts & Nevis — Register of Electors 2026. 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)
- Allan Louisyb. 1916LCprime minister of Saint Lucia (1916-2011)
- François Louisyb. 1921FRGuadeloupean politician
- Pearlette Louisyb. 1946LCGovernor-General of Saint Lucia
- Patrick Louisyb. 1950French marine scientist, author, and photographer
- Ferdy Louisyb. 1961FRFrench politician
- Wilfried Louisy-Danielb. 1986FRfootball player
- Christopher Louisyb. 2005GBBritish association football player (born 2005)
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 13 sources across 8 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1951 | 79 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1991 | 73 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1981 | 72 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1941 | 65 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1961 | 61 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1971 | 57 | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 43 | #116,436 |
| DM Dominica | Dominica — Revised List of Electors May 2025 | 2025 | 40 | #187 |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1921 | 35 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1931 | 34 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1911 | 29 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1901 | 26 | — |
Reference works 2
- Wikipedia given-name tokens
- 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 Louisy?
- A machine transcription gives /luii/ (IPA) for French.
- In which country does Louisy have the most bearers?
- Mondonomo estimates about 425 people named Louisy in France, more than in any other country we hold, where it is most often spelled louisy.
- Where is Louisy most common?
- Measured as a share of residents rather than as a count, Louisy is densest in Dominica — about 1 in 1.9 thousand people — even though France holds more of our records for it.
- How common is the name Louisy?
- In Dominica, the national register counted 40 people named Louisy in 2025, about 1 in 1.9 thousand residents.
What do you want to know about Louisy?
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/louisyThe 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, “Louisy”. Data snapshot 2026-10-10.