How Many People Are Named Alastair?
people named Alastair are alive in the United States today (estimate)
About 1 in 259,517 people in the US has this name
Based on 1,364 babies named Alastair in Social Security records from 1922 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
67 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Anglicized form of ALASDAIR.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
Related & Similar Names
⚧ Gender Distribution
All of the babies given the name Alastair in the records were boys.
👥 Age Distribution
The average person named Alastair alive today is about 17 years old, and 79% are under 30. Half of them were between 5 and 26 in 2025.
📈 Popularity Over Time
Alastair first appears in the records in 1922, and 2025 was its biggest year so far, with 67 babies.
Babies given the name each year, 1922 to 2025
🏆 Rank History
Alastair has never been one of the 100 most popular boys' names. Its best rank was #2,147, in 2025. In 2025 it ranked #2,147.
| Boys | |
|---|---|
| Rank in 2025 | #2,147 |
| Best rank | #2,147 (2025) |
| Years in the top 100 | None |
| Rank in its biggest decade | #2,845 in the 2010s |
📍 State-Wise Distribution
People named Alastair alive today, by the state where they were born (estimate; state records start in 1910).
More people named Alastair were born in California than in any other state: about 90 of those alive today. Compared with the national rate in the same years, Alastair was given about 4.2 times as often in California.
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