Alastair Boy
How popular is Alastair?
#2,145 boy name in 2025
67 baby boys were named Alastair in the US in 2025, making it the 2145th most popular boy name.
Alastair popularity over time
| Rank in 2025 | #2,145 for boys (▲ 225 from 2024) |
|---|---|
| Babies in 2025 | 67 boys |
| 10-year trend | Rising (+43% babies vs 2015) |
| Earlier ranks | #2,599 in 2015, #2,979 in 2020 |
| Peak year | 2025 (67 boys) |
| Highest rank | #2,145 in 2025 |
| First recorded | 1922 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.0% in a class of 25 kids born in 2025 |
Alastair counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Alastair family of names ranked #1,191 for boys in 2025 (#1,122 the year before), with 140 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Alastair | 67 | 48% |
| Alastor | 55 | 39% |
| Alaster | 13 | 9% |
| Alastar | 5 | 4% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Alastair is most popular
Babies named Alastair per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Oregon: 0.1 per 1,000 (6 boys)
- Washington: 0.0 per 1,000 (5 boys)
- New York: 0.0 per 1,000 (10 boys)
- California: 0.0 per 1,000 (21 boys)
- Texas: 0.0 per 1,000 (12 boys)
Alastair by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1920s | 17 | #3,245 |
| 1940s | 6 | #3,315 |
| 1960s | 10 | #4,032 |
| 1970s | 48 | #3,280 |
| 1980s | 145 | #2,288 |
| 1990s | 152 | #2,993 |
| 2000s | 230 | #3,023 |
| 2010s | 420 | #2,185 |
| 2020s | 336 | #2,145 |
Boy names about as popular as Alastair
Questions
- Is Alastair a boy or girl name?
- Alastair is mostly a boy name. Over the last 10 years, 100% of babies named Alastair were boys.
- How popular is the name Alastair?
- 67 baby boys were named Alastair in the US in 2025, making it the 2145th most popular boy name.
- When was Alastair most popular?
- Alastair peaked in 2025, when 67 boys were given the name. Its highest rank was #2,145 in 2025.
- How many people are named Alastair?
- 1,364 babies have been named Alastair in the US since 1880. We estimate about 1,320 of them are alive in 2026, with a median age of 13.
- Where is Alastair most popular?
- From 2021 to 2025, Alastair was most common in Oregon, at 0.1 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.