Cathlyn
Cathlyn was last recorded in 2024, when 12 babies were given it; 361 Americans have been recorded with it between 1923 and 2024 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Cathlyn by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Cathlyn?
Unranked in 2025
Its last girls’ rank on record is #8,553, in 2024; SSA lists a name only in years with 5 or more births.
18 babies in 1953, the peak
Cathlyn peaked in 1953, when 18 girls were given it, #2,525 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2024 | 12 | #8,553 | 7.4 |
| 2011 | 5 | #17,294 | 2.8 |
| 2008 | 6 | #15,774 | 3.2 |
| 2004 | 5 | #16,591 | 2.7 |
| 2003 | 6 | #14,183 | 3.3 |
| 2002 | 8 | #11,319 | 4.5 |
| 2001 | 6 | #13,832 | 3.3 |
| 2000 | 6 | #13,462 | 3.3 |
| 1999 | 6 | #12,962 | 3.4 |
| 1998 | 6 | #12,724 | 3.4 |
Every recorded year (46)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1996 | 5 | #13,879 | 2.9 |
| 1995 | 7 | #10,695 | 4.0 |
| 1994 | 9 | #8,935 | 5.0 |
| 1993 | 5 | #13,799 | 2.8 |
| 1992 | 6 | #12,000 | 3.3 |
| 1990 | 8 | #9,389 | 4.2 |
| 1989 | 8 | #8,877 | 4.3 |
| 1986 | 6 | #9,730 | 3.5 |
| 1985 | 8 | #7,662 | 4.6 |
| 1974 | 6 | #7,818 | 4.1 |
| 1973 | 5 | #8,595 | 3.4 |
| 1972 | 7 | #6,647 | 4.6 |
| 1971 | 9 | #5,601 | 5.4 |
| 1968 | 5 | #7,139 | 3.0 |
| 1966 | 5 | #6,695 | 3.0 |
| 1965 | 6 | #5,900 | 3.4 |
| 1964 | 5 | #6,890 | 2.6 |
| 1963 | 6 | #5,969 | 3.1 |
| 1961 | 12 | #3,812 | 5.9 |
| 1960 | 5 | #6,488 | 2.5 |
| 1959 | 12 | #3,641 | 5.9 |
| 1957 | 9 | #4,247 | 4.4 |
| 1956 | 12 | #3,519 | 6.0 |
| 1955 | 12 | #3,410 | 6.1 |
| 1954 | 12 | #3,348 | 6.2 |
| 1953 | 18 | #2,525 | 9.6 |
| 1952 | 11 | #3,397 | 5.9 |
| 1951 | 12 | #3,126 | 6.7 |
| 1950 | 7 | #4,373 | 4.1 |
| 1949 | 11 | #3,213 | 6.4 |
| 1948 | 10 | #3,381 | 5.9 |
| 1947 | 13 | #2,922 | 7.3 |
| 1946 | 6 | #4,503 | 3.8 |
| 1945 | 7 | #3,713 | 5.4 |
| 1942 | 5 | #4,717 | 3.7 |
| 1923 | 5 | #5,075 | 4.1 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Cathlyn a boy’s or a girl’s name?
Cathlyn has been recorded only for girls: SSA lists no boys with the name in 46 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Cathlyn: the SSA national file counts each sex separately.
How many people are named Cathlyn, and how old are they?
An estimated 304 Americans named Cathlyn and born in the U.S. are alive in 2026 (84% of everyone recorded); the median is 58 years old and half are between 31 and 72. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 472 people named Cathlyn (468 women and girls, 4 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 308 born in the U.S. The Census count is 1.5 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
How common is the spelling Cathlyn?
Cathlyn is a less common spelling of Kathlyn: SSA has recorded 361 Cathlyn and 5,156 Kathlyn since 1880.
Of these 8 names spelled alike, given to 36,838 babies since 1880, Cathlyn is the fifth most given (<1% of them). In 2025 none of their 44 babies recorded by SSA was a Cathlyn (SSA lists a name only with 5 or more babies of one sex).
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
More about Cathlyn and names like it
- Compare Cathlyn and KathlynBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1950sCathlyn peaked in 1953.
- Texas’s most given namesThe state where SSA recorded the most babies named Cathlyn since 1910.
- The top names of 1953The year the most babies were named Cathlyn.
- The names of the Baby BoomersMost people named Cathlyn alive today were born 1946-1964.
- Names starting with CMost given first.