Rosalyn
Girl name · #1047 in 2025 · Uniqueness 70/100
Rosalyn ranks #1047 among American girls' names as of 2025, with 237 newborns given the name that year. A decade ago it stood at #1135, so the name has been rising over the past ten years. Roughly one in every 7,595 girls born in 2025 was named Rosalyn.
The 126-year story
Rosalyn first appears in the Social Security records in 1899, when 7 girls received the name. Its peak came in 1955, when 422 girls were named Rosalyn — good for #431 that year. Today's parents encounter it as a name from their grandparents’ generation, which is precisely the vintage window from which names get revived. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Rosalyn per year, 1880–2025. Source: SSA.
Unlock the 5-year forecast and compare Rosalyn against up to 5 other names.
Uniqueness: will there be another Rosalyn in class?
Rosalyn scores 70 out of 100 on our uniqueness scale, which blends current rarity with five-year momentum — putting it in the "rare" band. A high score means genuine rarity — your Rosalyn will likely be the only one in the room, with the occasional spelling-out as the price.
Where Rosalyn is most common
Geography matters for names, and Rosalyn is no exception. In 2025 the states with the most Rosalyns were CA (28), TX (21), FL (13), PA (12), MI (11). Raw counts naturally favor populous states, but the spread still hints at where the name is part of the local naming culture.
Names like Rosalyn
Statistically, parents drawn to Rosalyn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Roslyn, Marilyn, Gwendolyn, Carolyn, and Althea.
RoslynMarilynGwendolynCarolynAltheaRaeSusannaGwen
Rank history (last 25 years)
| Year | Babies named Rosalyn | Rank |
|---|---|---|
| 2025 | 237 | #1047 |
| 2024 | 304 | #887 |
| 2023 | 252 | #1006 |
| 2022 | 290 | #930 |
| 2021 | 332 | #832 |
| 2020 | 322 | #847 |
| 2019 | 312 | #859 |
| 2018 | 313 | #865 |
| 2017 | 298 | #899 |
| 2016 | 283 | #958 |
| 2015 | 223 | #1135 |
| 2014 | 271 | #984 |
| 2013 | 196 | #1227 |
| 2012 | 165 | #1396 |
| 2011 | 159 | #1427 |
| 2010 | 148 | #1513 |
| 2009 | 157 | #1478 |
| 2008 | 141 | #1605 |
| 2007 | 113 | #1859 |
| 2006 | 153 | #1454 |
| 2005 | 127 | #1599 |
| 2004 | 117 | #1654 |
| 2003 | 96 | #1896 |
| 2002 | 107 | #1708 |
| 2001 | 96 | #1833 |
Frequently asked questions
Is Rosalyn a popular girl name?
Rosalyn ranked #1047 among girls in 2025 with 237 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1135.
When was the name Rosalyn most popular?
Rosalyn peaked in 1955, when 422 American girls received the name (ranked #431 that year). Since 1955 the name has declined from that high.
How rare is the name Rosalyn?
In 2025, roughly 1 in 7,595 newborn American girls was named Rosalyn. It scores 70/100 on our uniqueness scale (rarity blended with momentum), which we classify as "rare".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.