The first name Alasdair
A boy’s name from Scottish Gaelic.
Pronounced /ˈæl.ɪ.sdɚ/ 3 syllables Male
Meaning and origin
Scottish Gaelic origin
A male given name from Scottish Gaelic.
From Wiktionary (CC BY-SA 4.0).
Popularity
Babies registered in England and Wales, 1996–2025
In 2025, 15 boys were named Alasdair, making it the 1,705th most popular boys’ name. It peaked in 1996, with 71 births (#335).
Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Alasdair with other names.
Popularity in the United States
Babies named Alasdair at birth, 1880–2025
In 2025, 28 boys born in the United States were named Alasdair, the 3,850th most popular boys’ name that year. It was used most in 2021, when 37 were.
US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.
Famous people named Alasdair
1 on Wikidata, most written-about first
- Alasdair mac Mhaighstir AlasdairBritish poet, lexicographer, political writer and memoirist, 1698–1770
More Scottish Gaelic boys’ names
Questions
- What is the origin of the name Alasdair?
- Alasdair comes from Scottish Gaelic.
- How popular is the name Alasdair?
- In 2025, 15 boys born in England and Wales were named Alasdair, ranking 1,705th. Its peak was 1996, with 71 births.
- Is Alasdair a boy's or a girl's name?
- Mostly a boy's name: 100% of the 525 US babies named Alasdair since 1880 were boys.
- When was Alasdair most popular?
- 2021 in the United States, when 37 babies were named Alasdair, its highest rank at 3,181st.
- How do you pronounce Alasdair?
- Alasdair is /ˈæl.ɪ.sdɚ/, 3 syllables.