Alastair
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Meaning
an English spelling of Alasdair
How popular is Alastair around the world?
In the United States, 336 babies were named Alastair between 2020 and 2025. In South Australia, 2 boys were registered as Alastair in 2017.
Alastair is on the official records of the United States, South Australia, Scotland, England and Wales, Canada and Spain.
United States
1 in 65,000
In the United States, 336 babies were named Alastair between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Alastair peaked in the 2010s and the 2020s in nearly equal measure.
Births with a Social Security record. Source: U.S. Social Security Administration
South Australia
1 in 9,2002017
In South Australia, 2 boys were registered as Alastair in 2017.
The count never rose above 8 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
Scotland
1 in 11,000
In Scotland, 4 boys named Alastair were registered in 2024, the 619th 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 23,000
In England and Wales, 25 boys named Alastair were born in 2025, ranked 1,153rd 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 33,000
In Canada, 11 boys named Alastair were born in 2024, ranked 1,817th 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)
Spain
1 in 2M
In Spain, 22 residents are named Alastair, ranked 27,729th among men, with a mean age of 52.8 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
Ireland
last on record 2020
Alastair is not on the 2025 record for Ireland, where names under 3 in a year are withheld at source.
The count never rose above 8 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
Montevideo City
last on record 1968
Alastair 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 1 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
New Zealand
last on record 1995
Alastair 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
Not on the record in Mexico City, 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 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 Alastair
Most people given the name Alastair 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 Alastair deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Alastair 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 Alastair fits with your family’s names and surname.
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