Feminine dossier · first seen 1899
Rosalyn
Stable
Cross-generational persistence
Peak era
1955
Peak births
422
Current vitality
Fragile
Peak generation
Boomer
Quick answers about Rosalyn
How many people are named Rosalyn?
An estimated 14,981 living Americans are named Rosalyn.
How rare is Rosalyn?
Rosalyn is uncommon among babies today, with 237 girls receiving the name in 2025, down 43.8% from its 1955 peak.
How old is the typical Rosalyn?
The median age of a living American named Rosalyn is approximately 46 years, with most bearers falling between 14 and 65 years old.
Is Rosalyn still popular?
Yes. Rosalyn is holding steady, with 237 births in 2025 and a consistent recent baseline.
Where is Rosalyn most common?
Rosalyn has its strongest geographic signal in Mississippi, where it appears 3.8× more often than the national baseline.
1899Peak 19552025
Peak year
1955
Decline from peak
43.8%
2025
237
All-time
23,278
Where it lives now
Rosalyn is most concentrated in Mississippi — about 3.8× the national rate in the 1980s.
States where Rosalyn is given more often than the national average — its present-day heartland.