Alasdair
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Meaning
the Scottish Gaelic form of Alexander
How popular is Alasdair around the world?
In the United States, 167 babies were named Alasdair between 2020 and 2025. In Scotland, 17 boys named Alasdair were registered in 2024, the 234th most common name among boys that year.
Alasdair is on the official records of the United States, Scotland, England and Wales and Canada.
United States
1 in 130,000
In the United States, 167 babies were named Alasdair between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Alasdair has stayed rare in US records the whole time: no peak decade to name.
Births with a Social Security record. Source: U.S. Social Security Administration
Scotland
1 in 2,700
In Scotland, 17 boys named Alasdair were registered in 2024, the 234th most common name among boys 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
England and Wales
1 in 39,000
In England and Wales, 15 boys named Alasdair were born in 2025, ranked 1,705th among boys 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
1 in 46,000
In Canada, 8 boys named Alasdair were born in 2024, ranked 2,328th among boys 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)
Ireland
last on record 2022
Alasdair is not on the 2025 record for Ireland, where names under 3 in a year are withheld at source.
The count never rose above 3 in a year, too few to chart.
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
last on record 2014
Alasdair is not on the 2017 record for South Australia, whose registry publishes every name given that year.
The count never rose above 3 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
Not on the record in Spain, Mexico City, Argentina, Puerto Rico, New Zealand 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 Alasdair
Most people given the name Alasdair 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.
The Alasdair deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Alasdair 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 Alasdair fits with your family’s names and surname.
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