Girls' name · peaked in 1952
Rosalyn name popularity since 1925
21,676 babies born in the US from 1925 to 2025 were named Rosalyn. Half of them were born in 1965 or earlier, so the typical Rosalyn is about 61 years old in 2026. Rosalyn peaked in 1952 as the #413 name for girls, and it was outside the top 1,000 in 2025.
Key facts
- US babies since 1925
- 21,676
- Named Rosalyn, 1925–2025
- In 2025
- Not top 1,000
- #1,051 for girls in 2025
- Girls / boys
- 100.0% girls
- 21,676 girls · 0 boys
- Most popular in
- Georgia
- 1.93× its national share
Peak year is the year Rosalyn made up the largest share of US girls, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.
Rosalyn births per year, 1925–2025
The biggest year by count was 1955. Measured as a share of all babies, Rosalyn peaked in 1952.
- Steepest fall: Between 1985 and 1990, Rosalyn's share of baby girls fell by 42%, from 1 in 10,300 to 1 in 17,700.
- Fastest rise: Between 2012 and 2017, it became 1.8× more common, from 1 in 10,700 baby girls to 1 in 5,790.
Shaded on the chart. Both compare Rosalyn's share of all US girls five years apart, counting only years with at least 100 babies named Rosalyn.
Decade by decade
Babies named Rosalyn in each decade, and its rank among girls' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Girls | Rank |
|---|---|---|
| 1925–29 | 914 | – |
| 1930s | 1,831 | #522 |
| 1940s | 2,580 | #489 |
| 1950s | 3,779 | #431 |
| 1960s | 2,808 | #543 |
| 1970s | 1,982 | #993 |
| 1980s | 1,552 | #942 |
| 1990s | 933 | #1,666 |
| 2000s | 1,192 | #1,606 |
| 2010s | 2,368 | #1,138 |
| 2020–25 | 1,737 | #1,051 |
Ranks count every name given to at least 5 girls that year, so they can go past 1,000.
Generation fingerprint
29.8% of babies named Rosalyn from 1925 to 2025 were born in the Baby Boom years (1946–1964). The full split by generation:
Where Rosalyn is most popular
The index compares Rosalyn's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Rosalyn.
| State | Index | Babies |
|---|---|---|
| Georgia | 1.93× | 918 |
| New York | 1.72× | 2,249 |
| Alabama | 1.53× | 466 |
| South Carolina | 1.51× | 365 |
| Louisiana | 1.50× | 463 |
Other spellings
Spellings that sound like Rosalyn and were given to at least 1,000 girls from 1925 to 2025, with the year each one was most popular.
| Spelling | Girls | Peak year |
|---|---|---|
| Rosalyn (this page) | 21,676 | 1952 |
| Roselyn | 13,519 | 2018 |
| Rosalynn | 3,533 | 2020 |
Names with a similar story
Of the other 1999 names on this site, these six had the share of babies closest in shape to Rosalyn's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Rosalyn.
Names from the same era
Other common names that peaked within two years of Rosalyn (1952).
Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data