Lucy
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Meaning
"light," traditionally, from Lucia and the root lux; in Roman times given to daughters born at daybreak, and in Scandinavia still honored with a festival of candles each December. An old saint's name that sounds permanently fresh
Goes by Lu, Lulu. See all nicknames
Carried by actress Lucy Liu, a classic-turned-modern crossover, warm and simple to say in any language. Famously borne by Lucy Guo, co-founder of Scale AI.
The story
Lucy’s association with light is real, but its history is not one uninterrupted candlelit line. Lucy is the English form of Lucia, and scholarly and institutional sources connect that older form with Latin lux, "light".
The calendar supplies one layer: Lucy of Syracuse is commemorated on December 13, with her martyrdom traditionally dated to 304.
The observance line keeps the calendar claim narrow: a date and a named tradition, not one unbroken origin story.
Lucy's name day is December 13, the feast of Saint Lucy of Syracuse in the Roman calendar of saints.
Medieval English records supply another layer. A scholarly corpus includes Lucia in 1381, luce in 1395, and lucie in 1411. Those surviving entries are documented lower bounds, not Lucy’s first appearance.
The dated record below is a surviving floor for the form, not its first-ever use.
On record since at least the 4th century: Saint Lucy of Syracuse.
Sweden’s Lucia custom belongs beside those histories without being collapsed into them. Sweden’s language authority describes the candlelit practice as a later layer and dates the modern public procession to 1927, rather than an unchanged survival from Sicily. The interesting part is how the layers gathered, not a tidy origin story that makes them one.
Lucy across languages
One shared root links 10 names across 5 languages.
Shared root: from Latin lux "light", through the Roman Lucius and its feminine Lucia
The constellation
More branches
Where Lucy travels
Chinese American · A documented choice in Chinese American families.
Lucy in song
Lucy in the Sky with Diamonds
The Beatles (1967)
Lennon always insisted the title came from a drawing his son Julian brought home of a classmate named Lucy, whatever anyone else read into the initials.
How popular is Lucy around the world?
In the United States, 29,781 babies were named Lucy between 2020 and 2025. In Ireland, 179 girls named Lucy were born in 2025, the 16th most common name among girls that year.
Lucy is on the official records of the United States, Ireland, South Australia, Scotland, New Zealand, Canada, New South Wales, England and Wales, Norway, Austria, France, Mexico City, Chile, Brazil, Argentina, Poland and Spain.
United States
1 in 730
In the United States, 29,781 babies were named Lucy between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Lucy peaked in the 2020s. Lucy reached 27,599 US births in the 1920s, its high point before 1930, fell to 3,706 in the 1970s, and was back at 42,035 in the 2010s.
Births with a Social Security record. Source: U.S. Social Security Administration
Ireland
1 in 300
In Ireland, 179 girls named Lucy were born in 2025, the 16th 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
South Australia
1 in 3102017
In South Australia, 60 girls were registered as Lucy 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
Scotland
1 in 400
In Scotland, 113 girls named Lucy were registered in 2024, the 28th 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
New Zealand
1 in 430
In New Zealand, 135 girls named Lucy 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 880
In Canada, 414 girls named Lucy were born in 2024, the 52nd 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
#32 · 2025
In New South Wales, 165 girls named Lucy were registered in 2025, ranked 32nd 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
England and Wales
1 in 1,700
In England and Wales, 346 girls named Lucy were born in 2025, the 143rd 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
Norway
1 in 2,000register 2026
In Norway, 13 girls were given the name Lucy 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)
Austria
1 in 3,000
In Austria, 25 girls named Lucy were born in 2025, the 235th 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 3,700
In France, about 175 girls named Lucy were born in 2025, the 310th 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 6,500
In Mexico City, there were 18 registrations of Lucy 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 6,600
In Chile, 27 girls were registered as Lucy in 2021, every accent spelling counted together.
share of that year’s name registrations
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
Brazil
1 in 21,000
At the 2022 census, 9,565 people in Brazil were named Lucy, ranked 1,778th, with a median age of 59.
Among people named Lucy living in Brazil at the 2022 census, more were born in the 1960s than in any other decade.
people alive at the 2022 census, by decade of birth
The census also counted 311 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
Argentina
1 in 21,000
In Argentina, 31 newborns were given the name Lucy 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 25,000
In Poland, 10 girls named Lucy were born in 2025, the 352nd 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 64,000
In Spain, 698 residents are named Lucy, ranked 1,856th among women, with a mean age of 43.1 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 2010
Lucy is not on the 2011 record for Montevideo, whose registry withholds nothing, so the spelling was not given there that year.
share of that year’s births on record
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
Not on the record in Puerto Rico: that registry withholds small counts, so rare uses may sit below its floor.
The Lucy deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Lucy 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 Lucy fits with your family’s names and surname.
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