Feminine dossier · first seen 1955
Tamsin
Stable Decline
Gradual decline from 2017
Peak era
2017
Peak births
27
Current vitality
Below reporting floor
Peak generation
Gen Alpha
Quick answers about Tamsin
How many people are named Tamsin?
An estimated 397 living Americans are named Tamsin.
How rare is Tamsin?
Tamsin fell below the SSA's 5-birth reporting floor in 2025. It is extremely rare as a new baby name.
How old is the typical Tamsin?
The median age of a living American named Tamsin is approximately 13 years, with most bearers falling between 8 and 23 years old.
Is Tamsin still popular?
Not especially. Tamsin has been declining since its 2017 peak and registered 0 births in 2025.
1955Peak 20172025
Peak year
2017
Decline from peak
100%
2025
0
All-time
413