Kayley
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Meaning
variant of Kaylee, modern blend of Kay and Leigh
How popular is Kayley around the world?
In the United States, 364 babies were named Kayley between 2020 and 2025. In Ireland, 3 girls named Kayley were born in 2025, the 885th most common name among girls that year.
Kayley is on the official records of the United States, Ireland, South Australia and England and Wales.
United States
1 in 60,000
In the United States, 364 babies were named Kayley between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Kayley peaked in the 2000s.
Births with a Social Security record. Source: U.S. Social Security Administration
Ireland
1 in 18,000
In Ireland, 3 girls named Kayley were born in 2025, the 885th 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 18,0002017
In South Australia, 1 girl was registered as Kayley in 2017.
The count never rose above 4 in a year, too few to chart.
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
England and Wales
1 in 200,000
In England and Wales, 3 girls named Kayley were born in 2025, ranked 5,927th 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
Canada
last on record 2023
Kayley is not on the 2024 record for Canada, where names under 5 in a year are excluded at source.
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)
Mexico City City
last on record 2014
Kayley is not on the 2022 record for Mexico City, where small counts are withheld at source.
The count never rose above 3 in a year, too few to chart.
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
New Zealand
last on record 2008
Kayley is not on the 2025 record for New Zealand, where names under 10 in a year are excluded at source.
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
Scotland
last on record 2018
Kayley is not on the 2024 record for Scotland, where spellings under 3 in total are suppressed at source.
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
Not on the record in Spain, Argentina, Puerto Rico and Poland: those registries withhold small counts, so rare uses may sit below their floors.
Not on the Chile record: nametree keeps spellings that reached 5 registrations in some year, so rarer uses are not shown. 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 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 Kayley
Most people given the name Kayley 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.
The Kayley deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Kayley 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 Kayley fits with your family’s names and surname.
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