Total births
525
Boys' name · since 1989
Alasdair
Since 1989, U.S. Social Security records show 525 babies named Alasdair, peaking in 2021. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #3748
- among boys today
- 525
- born since 1989
- 2010s
- peak decade
- 74%
- more common than other boys
525 babies have been named Alasdair since 1989, making it today's #3748 boys' name.
According to the U.S. Social Security Administration, Alasdair has been recorded 525 times among boys since 1989, currently ranked #3748 nationally and more common than 74% of boys, with its heaviest use in the 2010s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1989 to 2025.
- #3748 among boys today
- 525 born since 1989
- 2010s peak decade
- 74% more common than other boys
Data updated Jun 2026
The verdict
Alasdair is currently the #3748 boys' name in America, more common than 74% of boys - 525 born since 1989, peaking in the 2010s.
- #3748
- among boys today
- 525
- born since 1989
- 2010s
- peak decade
- 74%
- more common than other boys
Alasdair vs. every other boys name in current SSA rankings
#3748
of 14,294 boys in use
More common than 74% of names given to boys today.
2010s
Peak decade
43% of everyone ever named Alasdair was born in this single decade.
2021
Single peak year
37 babies were named Alasdair in 2021 - its busiest year on record.
How Alasdair compares
525 Top 43% higher than 57% of 14,294 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Alasdair's all-time total is 43% above the median boys name, and Liam still leads by a wide margin.
| Metric | Alasdair | Median boys name (Elchonon) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 525 | 367 | 358,536 |
| Peak-year births | 37 | 23 | 22,252 |
Alasdair's usage pattern, beyond the headline number
Alasdair splits its recorded history at 2010: 75% of all births land in the more recent half, 25% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1989 (5 births) -- compare that against the 2021 peak of 37 for a sense of just how much the name's popularity has swung.
Alasdair at a glance
Outside the top 1,000Peak year
2021
Current rank
#3,748
Active since
1989
Alasdair popularity over time
Annual U.S. births registered with the Social Security Administration · 1989–2025
- Peak year (2021)
- 37
- Annual births at peak, across 37 years of records
Alasdair by decade
Total births in each ten-year window, peak vs trough at a glance
2010s was Alasdair's strongest decade.
225 babies received the name during that ten-year window, about 43% of all-time use.
Alasdair births by decade
Total births in each ten-year window
- 1980s 5
1980s
5 births
- 1990s 43
1990s
43 births
- 2000s 85
2000s
85 births
- 2010s
2010s
225 births
- 2020s
2020s
167 births
What this shows Peak: 2010s at 225 births (43% of all-time use).
How Alasdair compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Alasdair's total volume
Alasdair vs 15 similarly-sized boys names
Alasdair by state
Where Alasdair concentrates geographically, total births since 1989
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 18 | 3.4% |
California share of Alasdair's total US births 3.4%
18 of 525 births nationwide.
Frequently Asked Questions
How popular is the name Alasdair? ▼
Since 1989, Social Security records show 525 babies named Alasdair. Today it holds rank #3748 among boys. Its busiest year on record was 2021, with 37 births.
When was Alasdair most popular? ▼
Alasdair was most popular in the 2010s decade with 225 total births. The single peak year was 2021.
Where is Alasdair most popular? ▼
The top states for the name Alasdair are California (18 births).
How long has the name Alasdair been used? ▼
Alasdair has been recorded in Social Security data since 1989, spanning 37 years of data through 2025.
What names are similar to Alasdair? ▼
Names with a similar sound or spelling include Alan, Alain, Alaric, Alastair, and 4 more. These share a common prefix and are also used for boys.
What to do with Alasdair's data
- Alasdair's usage has stayed within range of its 2010s decade-level peak (225 total births) through the 2020s (167) -- a comparatively stable name, not a fading trend.
- California records the most Alasdairs (18 births) -- see the full state breakdown if geography matters to your decision. California names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Alasdair
Nearby Names Like Alasdair
Names with a similar sound, spelling, or feel to Alasdair
Alan Boy
#167 363,313 births
Alain Boy
#3234 3,980 births
Alaric Boy
#1110 3,961 births
Alastair Boy
#2376 1,364 births
Alakai Boy
#1582 910 births
Compare Alasdair side by side: Alasdair vs Alan Alasdair vs Alain Alasdair vs Alaric
Related Names
Names with a similar popularity rank to Alasdair
Data Sources
Data as of June 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1989–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Alasdair: #3748 Boys' Name - 525 Births, Peak 2021." NameAlmanac. Accessed via https://namealmanac.com/name/alasdair. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Alasdair draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.