Humanverse

Rosalyn

Rosalyn is a girl's name that peaked in 1955, when it was the 431st most popular in the United States. In 2025 it ranked 1,047th. About 17,000 Rosalyns are alive in the United States today, and half of them are over 49.

Popularity, 1880–2025

Births per year, 1880 to 2025 0 125 250 375 500 1880 1900 1920 1940 1960 1980 2000 2020

girls named Rosalyn

By the numbers

Total US births
23,278
Estimated living today
17,000
Median age today
49
Peak year
1955
Best rank
431st
Rank in 2025
1,047th
First recorded
1899

How old the living Rosalyns are

Born with the name each year, and how many of them are alive today, 1880 to 2025 0 125 250 375 500 1880 1900 1920 1940 1960 1980 2000 2020

born that year still alive today

Of the 23,278 babies given the name since 1899, about 17,000 are alive — 73 in every hundred. Roughly 4,400 of them are children and 5,300 are 65 or over. The dotted line is the median: half were born before 1976 and half after.

An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.

Where the name comes from

Origin Latin

Etymology from Wiktionary, used under CC BY-SA 4.0.

Notable Rosalyns

People named Rosalyn with articles in the most Wikipedia languages. Data from Wikidata (CC0).

Where Rosalyn is most common

Relative to how many babies each state records, Rosalyn is most concentrated in Georgia (1.9×), New York (1.9×), Louisiana (1.4×), Alabama (1.4×).

Total births recorded in each state since 1910. Browse names by state.

Names of 1955

The most popular girls’ names the year Rosalyn peaked:

All the names of 1955

Rosalyn elsewhere

CountrySpelling BirthsBest rank
England and Wales girls Rosalyn 387 1,271st
Scotland girls Rosalyn 125 309th
Ireland girls Rosalyn 23 363rd

Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.

Rosalyn among the living

How many people each country's register counts under the name, rather than how many were given it in any one year. Each register was read on one date, and they are not the same date.

Country Spelling First forename Any forename
Finland girls Rosalyn 5 17

A count of people on a register – Finland on 4 August 2026 – and not of births, so it cannot be compared with the figures above. Names with very few bearers are withheld, and a dash in the first-forename column means the register would not say rather than that nobody goes by it.

Related names

Rosalyn against another name

Two names on one chart, with the year one overtook the other.

Compare Rosalyn with a name of your own

Try it on yourself

Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.