How Many People Are Named Guillaume?
people named Guillaume are alive in the United States today (estimate)
About 1 in 1,042,027 people in the US has this name
Based on 342 babies named Guillaume in Social Security records from 1967 to 2024, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
19 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
French form of WILLIAM.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
⚧ Gender Distribution
All of the babies given the name Guillaume in the records were boys.
👥 Age Distribution
The average person named Guillaume alive today is about 30 years old, and 51% are under 30. Half of them were between 22 and 39 in 2025.
📈 Popularity Over Time
Guillaume first appears in the records in 1967 and was given most often in 1997, to 19 babies. The last year it was given to at least 5 babies of one sex was 2024.
Babies given the name each year, 1967 to 2024
🏆 Rank History
Guillaume has never been one of the 100 most popular boys' names. Its best rank was #3,643, in 1997.
| Boys | |
|---|---|
| Rank in 2025 | Not ranked |
| Best rank | #3,643 (1997) |
| Years in the top 100 | None |
| Rank in its biggest decade | #5,042 in the 1990s |
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