Isabelle
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Meaning
"God is my oath," through Elizabeth and medieval Occitan Isabel; this spelling is used in French
Goes by Izzy. See all nicknames
The story
Isabelle of France could have married an emperor's son. She declined. The sister of Saint Louis refused the proposed marriage to Conrad, son of Frederick II. With her brother's authorization, she put a sum equivalent to her prospective dowry toward building Longchamp monastery near Paris. Isabelle is the French form of Isabel, a medieval Occitan form of Elizabeth that spread through Spain, Portugal and France. The family reaches back to Hebrew Elisheva, "my God is an oath." The life of this particular Isabelle had its own precise arrangement. She lived in a small house within the monastery enclosure. There she shared the sisters' life and prayer, without making religious vows. The resources intended for one royal future had helped build the place where she made another life.
Isabelle across languages
One shared root links 26 names across 6 languages.
Shared root: from Hebrew Elisheva, "my God is an oath"
The constellation
20 more branches of this family
How popular is Isabelle around the world?
In the United States, 12,160 babies were named Isabelle between 2020 and 2025. In South Australia, 43 girls were registered as Isabelle in 2017.
Isabelle is on the official records of the United States, South Australia, Ireland, England and Wales, New Zealand, Canada, New South Wales, Norway, Puerto Rico, Scotland, Brazil, Austria, France, Mexico City, Chile, Argentina, Poland and Spain.
United States
1 in 1,800
In the United States, 12,160 babies were named Isabelle between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Isabelle peaked in the 2010s. Isabelle went to 3,225 US babies in 2015 and 1,825 in 2025, 57% of the earlier figure.
Births with a Social Security record. Source: U.S. Social Security Administration
South Australia
1 in 4302017
In South Australia, 43 girls were registered as Isabelle in 2017.
share of that year’s name registrations
Births registered in South Australia (not all of Australia) by first name and year of registration, 1944–2017, from the state’s Births, Deaths and Marriages registry, which publishes every name down to a single birth in capitals; a spelling its export repeats inside a year is counted once, and from 2018 only a top 100 is published, so the series ends at 2017. Source: Consumer and Business Services (South Australia), popular baby names
Ireland
1 in 450
In Ireland, 121 girls named Isabelle were born in 2025, the 34th most common name among girls that year.
share of that year’s name registrations
Exact registered spellings from Irish vital statistics; any name under 3 in a year is withheld at source, and accented spellings (fadas) are recorded reliably only from 2018. Source: Central Statistics Office (Ireland), Irish babies' names
England and Wales
1 in 720
In England and Wales, 814 girls named Isabelle were born in 2025, the 54th most common name among girls that year.
share of that year’s name registrations
Birth registrations in England and Wales (not the whole UK); exact spellings are counted separately, and any spelling under 3 in a year is withheld at source. Source: Office for National Statistics, baby names in England and Wales
New Zealand
1 in 960
In New Zealand, 60 girls named Isabelle were registered in 2025.
share of that year’s name registrations
First given names from New Zealand birth registrations, grouped by registration year; any name under 10 in a year is excluded at source. Shares divide by Stats NZ’s count of births registered to mothers living in New Zealand, under 1% below the registry’s own count. Source: Department of Internal Affairs (New Zealand), baby name popularity over time
Canada
1 in 1,100
In Canada, 321 girls named Isabelle were born in 2024, the 75th most common name among girls that year.
share of that year’s name registrations
First given names from provincial and territorial vital statistics across Canada; any name-sex-year under 5 is excluded at source, and small Quebec counts carry a randomized adjustment made at source. Shares divide by Statistics Canada’s count of live births for the year; the 2024 count is preliminary. Source: Statistics Canada, first names at birth (table 17-10-0147-01)
New South Wales
#58 · 2025
In New South Wales, 114 girls named Isabelle were registered in 2025, ranked 58th in that year’s top 100 for girls.
share of that year’s top-100 registrations
New South Wales (not all of Australia) publishes only each year’s 100 most popular names per sex, so a missing year means below that top 100, not rare. Source: NSW Registry of Births, Deaths and Marriages, popular baby names
Norway
1 in 2,000register 2026
In Norway, 13 girls were given the name Isabelle in 2025.
share of the girls on the register for that year, SSB’s own figure
People who have or have had a Norwegian ID number, emigrants left out, from Statistics Norway’s name statistics (release of January 2026): by year of birth for 1945–2020 (everyone born that year who was ever registered in Norway, including people who registered later and people who have since died) and by year of naming from 2021; only first names carried by 200 or more living people are listed, counts under 4 are withheld, and SSB merges spellings that differ only by letters outside the Norwegian alphabet. The shares are SSB’s own, of the people of that sex and year in that count; the 2025 figure counts the children named that year, and no year is a count of births. Source: Statistics Norway (SSB), table 10467 (updated 2026-01-28)
Puerto Rico
1 in 2,300
In Puerto Rico, 8 babies were named Isabelle in 2025, and 304 have carried the name since 1998.
share of that year’s births on record
First given name only, from Social Security records of births in Puerto Rico; any name-sex-year under 5 births is withheld at source. Shares divide by the Puerto Rico Demographic Registry’s count of births on the island; the 2025 count is provisional. Source: U.S. Social Security Administration, territory name file (Puerto Rico)
Scotland
1 in 2,500
In Scotland, 18 girls named Isabelle were registered in 2024, the 207th most common name among girls that year.
share of that year’s name registrations
Births registered in Scotland; different spellings count separately but accents are merged at source, and any spelling under 3 in total is suppressed. Source: National Records of Scotland, babies' first names
Brazil
1 in 3,700
At the 2022 census, 54,391 people in Brazil were named Isabelle, the 535th most common name, with a median age of 13.
Among people named Isabelle living in Brazil at the 2022 census, more were born in the 2010s than in any other decade.
people alive at the 2022 census, by decade of birth
The census also counted 4,395 born between 2020 and August 2022, too recent a span to chart. People alive and resident in Brazil at the 2022 census, a living-population count, not births; names under 20 are withheld at source. Source: IBGE, Censo Demográfico 2022
Austria
1 in 5,100
In Austria, 15 girls named Isabelle were born in 2025, the 346th most common name among girls that year, spellings that differ only by special characters counted together.
share of that year’s births on record
Live births in Austria by year of birth, 1984–2025, from Statistik Austria’s first-name statistics; spellings that differ only by special characters are counted together (umlauts stay apart), every name down to a single birth is published, and the count covers babies with Austrian citizenship only until 2009, every baby from 2010, and from 2015 also births abroad to mothers living in Austria. Shares divide by Statistik Austria’s count of live births from 2010, and before that by the file’s own total for the year. Source: Statistik Austria - data.statistik.gv.at (OGDEXT_VORNAMEN_1, updated 2026-07-09)
France
1 in 9,900
In France, about 65 girls named Isabelle were born in 2025, the 652nd most common name among girls that year.
share of that year’s births on record
Births in France by year of birth, from INSEE’s fichier des prénoms (1900–2025; Mayotte from 2012); exact spellings count separately (Léo and Leo are different names), any spelling under 3 in a year and sex is withheld at source, every count is rounded to the nearest 5 at source, and nametree keeps the spellings that reached 20 in some year. Shares divide by INSEE’s count of births in France from 1957, and before that by the file’s own total for the year; INSEE says the file is not complete before 1946. Source: Insee, fichier des prénoms (last updated 2026-07-16)
Mexico City City
1 in 20,000
In Mexico City, there were 6 registrations of Isabelle in 2022.
share of that year’s registrations in the city
Civil-registry acts in Mexico City by registration year. Counts are lower bounds (names under 6 in a month and borough are removed at source) and count name-instances, not people; compound names are split, so “Maria Jose” counts under each part. 2023, a partial extract through 3 Mar with no cell on record for this name, is excluded. Source: Registro Civil of Mexico City, open data portal, registered given names 2000-2023
Chile
1 in 20,000
In Chile, 9 girls were registered as Isabelle in 2021, every accent spelling counted together.
The count never rose above 9 in a year, too few to chart.
First-name registrations with Chile’s civil registry by year of registration, 1920–2021, counted as spelling groups (Sofía, Sofia and Sofìa are one name, shown with its most-registered spelling); the registry withholds nothing, nametree keeps the groups that reached 5 registrations in some year, and shares divide by every registration of the year. Source: Servicio de Registro Civil e Identificación (Chile) via the guaguas package, first-name registrations 1920-2021
Argentina
1 in 37,000
In Argentina, 18 newborns were given the name Isabelle in 2024.
share of that year’s name registrations
Given-name components of births in Argentina 2012–2024; national cells are lower bounds and no sex split is published. Source: RENAPER (Argentina), Dirección Nacional de Población, given names 2012-2024
Poland
1 in 82,000
In Poland, 3 girls named Isabelle were born in 2025, the 583rd most common name among girls that year.
share of that year’s name registrations
First names given to children born in Poland by year of birth, 2000–2025, from the PESEL population register (Ministry of Digital Affairs); exact spellings count separately (Łukasz and Lukasz are different names), names given fewer than 5 times in a year were left off the list through 2012 and fewer than 2 times from 2013, and the register also counts children born abroad, so its yearly sums run above Poland’s live births. Shares divide by the register’s own published total for the year, never by births. Source: Ministry of Digital Affairs, PESEL register (dane.gov.pl)
Spain
1 in 83,000
In Spain, 542 residents are named Isabelle, ranked 2,166th among women, with a mean age of 43.6 years.
Residents of Spain on 1 January 2025. Spain publishes how old a name’s living bearers are, not a birth series, so there is no year chart. Source: INE (Spain), Censo de Población anual, 1 January 2025
Montevideo City
last on record 2007
Isabelle is not on the 2011 record for Montevideo, whose registry withholds nothing, so the spelling was not given there that year.
The count never rose above 2 in a year, too few to chart.
Births in the department of Montevideo (not all of Uruguay) by first name and year of birth, 1940–2011, from the city’s civil registry, which writes names in capitals, almost always without accents; counted as spelling groups (accent and punctuation variants merged), nothing is withheld at source, and 2012 is excluded as a partial year. Source: Servicio de Registro Civil, Intendencia de Montevideo, Partidas de Registro Civil de Montevideo (Licencia de Datos Abiertos - Uruguay); 2012 dropped as partial
When you meet Isabelle
Most people given the name Isabelle in the United States are teenagers or young adults today.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
Keep exploring
Names like Isabelle · Names that go with Isabelle · Nicknames for Isabelle · Middle names for Isabelle · Climbers and fallers
The Isabelle deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Isabelle truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Isabelle fits with your family’s names and surname.
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