How Many People Are Named Iain?
people named Iain are alive in the United States today (estimate)
About 1 in 121,458 people in the US has this name
Based on 2,911 babies named Iain in Social Security records from 1953 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
126 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Scottish form of JOHN.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
⚧ Gender Distribution
All of the babies given the name Iain in the records were boys.
👥 Age Distribution
The average person named Iain alive today is about 25 years old, and 71% are under 30. Half of them were between 16 and 32 in 2025.
📈 Popularity Over Time
Iain first appears in the records in 1953 and was given most often in 2003, to 126 babies. In 2025, 11 babies got the name.
Babies given the name each year, 1953 to 2025
🏆 Rank History
Iain has never been one of the 100 most popular boys' names. Its best rank was #1,180, in 2003. In 2025 it ranked #7,353.
| Boys | |
|---|---|
| Rank in 2025 | #7,353 |
| Best rank | #1,180 (2003) |
| Years in the top 100 | None |
| Rank in its biggest decade | #1,434 in the 2000s |
📍 State-Wise Distribution
People named Iain alive today, by the state where they were born (estimate; state records start in 1910).
More people named Iain were born in California than in any other state: about 314 of those alive today. Compared with the national rate in the same years, Iain was given 2.6 times as often in California, 2.5 times in Virginia and 1.8 times in Texas.
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