How Many People Are Named Tamsin?
people named Tamsin are alive in the United States today (estimate)
About 1 in 848,101 people in the US has this name
Based on 413 babies named Tamsin in Social Security records from 1955 to 2024, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
27 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Contracted form of THOMASINA. It was traditionally used in Cornwall.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
Same Sound, Other Spellings
These names are pronounced like Tamsin in English. Counting Tamsin and these spellings together, about 579 people alive in the US have the name.
⚧ Gender Distribution
All of the babies given the name Tamsin in the records were girls.
👥 Age Distribution
The average person named Tamsin alive today is about 19 years old, and 80% are under 30. Half of them were between 8 and 24 in 2025.
📈 Popularity Over Time
Tamsin first appears in the records in 1955 and was given most often in 2017, to 27 babies. The last year it was given to at least 5 babies of one sex was 2024.
Babies given the name each year, 1955 to 2024
🏆 Rank History
Tamsin has never been one of the 100 most popular girls' names. Its best rank was #4,788, in 1956.
| Girls | |
|---|---|
| Rank in 2025 | Not ranked |
| Best rank | #4,788 (1956) |
| Years in the top 100 | None |
| Rank in its biggest decade | #6,987 in the 2010s |
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