Louisa
given name · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
Louisa 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: Variant of Louise, popular at the turn of the century; now largely replaced by Louise.
- 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 Louisa 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)
One other spelling is counted as the same name:
Locally spelled Luisa in AR Argentina, US United States, BR Brazil and 3 more.
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)
Variant of Louise, popular at the turn of the century; now largely replaced by Louise.
Sources 1
- Irish first names
Attested across 14 languages in the etymology graph.
Where in the world(measured from records)
Louisa 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).
Other recorded senses(measured from records)
Louisa is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In English, A female given name from the Germanic languages, a latinized form of Louise used since the eighteenth century.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Swedish, Louisa är en engelsk form av → Louise. En bekant namnbärare är den amerikanska författaren Louisa May Alcott (1832–88), som bl.a. skrev den världsberömda ungdoms romanen Unga kvinnor (1868), även filmad flera gånger.
as a nameFörnamn i Sverige. Kortfattat namnlexikon
In English, /. city, KY; county, VA; pers. name
as a namePronouncing Dictionary of Proper Names
In English, county, lA
as a namePronouncing Dictionary of Proper Names
In English, Feminine form of Louis.
as a nameBaby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular…
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)
- Louise of Great Britainb. 1724GBnot in their usual namedaughter of George II of Great Britain; Queen consort of Denmark and Norway
- Louisa Adamsb. 1775USFirst Lady of the United States from 1825 to 1829
- Louisa May Alcottb. 1832USAmerican novelist (1832–1888)
- Victoria, Princess Royalb. 1840GBnot in their usual nameBritish princess (1840-1901), Empress of Germany and Queen consort of Prussia from March to June 1888
- Princess Louise, Duchess of Argyllb. 1848GBnot in their usual nameViceregal consort of Canada (1848–1939)
- Edith Cavellb. 1865GBnot in their usual nameBritish nurse (1865-1915)
- Gabrielleb. 1969GBnot in their usual nameBritish singer and songwriter
- Rebecca Fergusonb. 1983SEnot in their usual nameSwedish actress (born 1983)
- Foxesb. 1989GBnot in their usual nameBritish singer
- Louisa Jacobsonb. 1991USAmerican actress
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)
Attested in 95 sources across 52 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 13K | #2,070 |
| SE Sweden | Skatteverket — Sök hur många som har ett visst namn (living population) | — | 1.4K | #1,377 |
| DK Denmark | Danmarks Statistik — Hvor mange hedder...? (living-population name counts) | — | 520 | #570 |
| SE Sweden | SCB — Namnstatistik (to 2023) | 2020 | 519 | — |
| US United States | SSA — National Baby Names (1880–present) | 2025 | 407 | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2022 | 290 | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 285 | #19,518 |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | 2020 | 84 | — |
| BR Brazil | IBGE — Nomes (census name API) | — | 81 | #39,997 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 33 | #2,070 |
| US United States | SSA — National Baby Names (1880–present) | 1922 | 5 | — |
Reference works 4
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Nişanyan Adlar (Turkish given-name national-registry frequency)
- 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
- What does the name Louisa mean, and where does it come from?
- Variant of Louise, popular at the turn of the century; now largely replaced by Louise. Recorded by Irish first names.
- What are other forms of the name Louisa?
- In the etymology graph, Louise, Luisa and Gina are forms of the same name in other languages.
- Is Louisa a male or female name?
- Louisa 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.
- How common is the name Louisa?
- In Brazil, the national register counted 290,525 people named Luiza in 2022, about 1 in 729 residents.
- How common is Louisa compared with other names?
- In Brazil, Louisa is the 258th most common given name of 474,894 given names recorded there.
- In which country does Louisa have the most bearers?
- In Brazil, the national register counted about 291 thousand people named Luiza, more than in any other country we hold.
What do you want to know about Louisa?
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/louisaThe same 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), and bulk access is licensed separately.
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, “Louisa” — the 258th most common given name in Brazil. Data snapshot 2026-10-10.