Louïsa
given name · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
Louïsa is a given name written in the Latin script, with more bearers in Brazil than in any other country. In the Dominican Republic it is the 16th most common given name. Recorded meaning: Borrowed from English Louisa.
- ZASouth Africa≈1 in 2.9K(inferred from the name graph)
- VEVenezuela≈1 in 330as Luisa
- COColombia≈1 in 457as Luisa
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 Louïsa 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.
- Brazil (measured from records)
- #370 (measured from records)
- 6 (measured from records)
- Sources
- 411 (measured from records)
- ≈1 in 2.9K (inferred from the name graph)
290,525 named Luiza, 2022
of 15M given names
recorded for this name
Highest-authority source
South Africa, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Luisa in AR Argentina, US United States, BR Brazil and 3 more and Louisa in SE Sweden, DK Denmark, ZA South Africa.
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)
Borrowed from English Louisa.
Sources 4
- Irish first names
- Wiktionary
- Förnamn i Sverige. Kortfattat namnlexikon
- Nordic Names
Attested across 17 languages in the etymology graph.
Where in the world(measured from records)
Louïsa 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 | #258 | 290,525as Luiza | 1 in 729 | 291K | Luisa | 202 |
| CO Colombia | #51 | ≈110,000 est. | ≈1 in 457 | 81 | Luisa | 189 |
| US United States | #687 | 96,368as Louise | 1 in 3.5K | 95K | Luisa | 411 |
| VE Venezuela | #45 | ≈87,000 est. | ≈1 in 330 | — | Luisa | 79 |
| AR Argentina | #140 | ≈67,000 est. | ≈1 in 681 | 1.5K | Luisa | 118 |
| SE Sweden | — | 56,304as Louise | 1 in 181 | 56K | Louisa | 43 |
| DK Denmark | #720 | 23,824as Louise | 1 in 246 | 24K | Louisa | 63 |
| DO Dominican Republic | #16 | ≈22,000 est. | ≈1 in 480 | 795 | Luisa | 68 |
| ZA South Africa | #338 | ≈20,000 est. | ≈1 in 2.9K | — | Louisa | 81 |
290,525 people counted by IBGE — names by decade (Kaggle mirror), 2022, counting the spelling luiza. 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: RENAPER — Apellidos (person counts, national); Census Bureau — First Name Frequency 2020 by sex; IBGE — names by decade (Kaggle mirror); the co-datosgov-candidates register; Skatteverket — Sök hur många som har ett visst namn (living population); Dominican Republic — Nombres más comunes registrados 2022-2023; Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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).
Evidence(measured from records)
No register attests this spelling yet
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Louïsa mean, and where does it come from?
- Borrowed from English Louisa. Recorded by Irish first names and Wiktionary and 2 other sources.
- Is Louïsa a male or female name?
- Louïsa is a female name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- In which country does Louïsa have the most bearers?
- In Brazil, the national register counted about 291 thousand people named Luiza, more than in any other country we hold.
- How common is the name Louïsa?
- In Brazil, the national register counted 290,525 people named Luiza in 2022, about 1 in 729 residents.
- How common is Louïsa compared with other names?
- In Brazil, Louïsa is the 258th most common given name of 474,894 given names recorded there.
What do you want to know about Louïsa?
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/lou%C3%AFsaThe 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, “Louïsa” — the 258th most common given name in Brazil. Data snapshot 2026-10-10.