Keilyn
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Meaning
a spelling of Kaylyn, a modern American name joining the popular sounds kay and lyn
How popular is Keilyn around the world?
In the United States, 311 babies were named Keilyn between 2020 and 2025. In Mexico City, there were 6 registrations of Keilyn in 2022.
Keilyn is on the official records of the United States, Mexico City, Chile and Spain.
United States
1 in 70,000
In the United States, 311 babies were named Keilyn between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Keilyn peaked in the 2010s and the 2020s in nearly equal measure.
Births with a Social Security record. Source: U.S. Social Security Administration
Mexico City City
1 in 20,000
In Mexico City, there were 6 registrations of Keilyn 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 Keilyn 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
Spain
1 in 1.2M
In Spain, 37 residents are named Keilyn, ranked 18,307th among women, with a mean age of 15 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
Argentina
last on record 2023
Keilyn is not on the 2024 record for Argentina, where small counts are withheld at source.
The count never rose above 6 in a year, too few to chart.
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
Canada
last on record 2007
Keilyn is not on the 2024 record for Canada, where names under 5 in a year are excluded at source.
The count never rose above 5 in a year, too few to chart.
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)
Puerto Rico
last on record 2016
Keilyn is not on the 2025 record for Puerto Rico, which withholds births under 5, and 10 babies have carried the name there since 1998.
The count never rose above 5 in a year, too few to chart.
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)
Not on 10 other recordsWhy
- Not on the record in England and Wales, Ireland, New Zealand, Scotland and Poland: those registries withhold small counts, so rare uses may sit below their floors.
- Not on the Montevideo record for 1940 to 2011: that registry withholds nothing, so this spelling was not given there in those years.
- Not on the France record: nametree keeps spellings that reached 20 births in some year, so rarer uses are not shown.
- Not on the South Australia record for 1944 to 2017: that registry withholds nothing, so this spelling was not given there in those years.
- Not on the Austria record for 1984 to 2025: Statistik Austria publishes every first name down to a single birth, so this name was not given there in those years (before 2010 the record covers babies with Austrian citizenship only).
- Not on Norway’s list: Statistics Norway lists only first names carried by 200 or more living people, so rarer names are not shown.
When you meet Keilyn
Most people given the name Keilyn in the United States are children or teenagers today. The name belongs to this generation.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
Keep exploring
The Keilyn deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Keilyn 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 Keilyn fits with your family’s names and surname.
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