Kathlyn
Kathlyn was given to 28 girls in 2025, #4,817 among girls’ names; 5,156 Americans have been recorded with it since 1897 (Social Security Administration, published May 2026).
An estimated 3,210 Americans named Kathlyn and born in the U.S. are alive in 2026 (62% of everyone recorded); the median is 51 years old and half are between 31 and 73.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Kathlyn by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Kathlyn?
#4,817 among girls’ names, 2025
Kathlyn rose from #5,931 in 2015 to #4,817 in 2025 among girls’ names; its share of girls born rose from 12.3 to 17.4 per million.
125 babies in 1951, the peak
Kathlyn peaked in 1951, when 125 girls were given it, #795 among girls’ names. The 28 births of 2025 are 22% of that peak.
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2025 | 28 | #4,817 | 0.02 |
| 2024 | 63 | #2,735 | 0.04 |
| 2023 | 9 | #10,731 | 0.01 |
| 2022 | 6 | #14,438 | under 0.01 |
| 2021 | 10 | #9,914 | 0.01 |
| 2020 | 9 | #10,682 | 0.01 |
| 2019 | 11 | #9,410 | 0.01 |
| 2018 | 13 | #8,359 | 0.01 |
| 2017 | 12 | #9,052 | 0.01 |
| 2016 | 13 | #8,627 | 0.01 |
Every recorded year (127)
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2015 | 22 | #5,931 | 0.01 |
| 2014 | 12 | #9,247 | 0.01 |
| 2013 | 19 | #6,585 | 0.01 |
| 2012 | 15 | #8,015 | 0.01 |
| 2011 | 20 | #6,439 | 0.01 |
| 2010 | 15 | #8,081 | 0.01 |
| 2009 | 31 | #4,743 | 0.02 |
| 2008 | 23 | #6,030 | 0.01 |
| 2007 | 34 | #4,418 | 0.02 |
| 2006 | 42 | #3,695 | 0.02 |
| 2005 | 39 | #3,768 | 0.02 |
| 2004 | 44 | #3,415 | 0.02 |
| 2003 | 41 | #3,497 | 0.02 |
| 2002 | 34 | #3,846 | 0.02 |
| 2001 | 42 | #3,275 | 0.02 |
| 2000 | 53 | #2,757 | 0.03 |
| 1999 | 38 | #3,345 | 0.02 |
| 1998 | 33 | #3,601 | 0.02 |
| 1997 | 35 | #3,322 | 0.02 |
| 1996 | 43 | #2,819 | 0.02 |
| 1995 | 46 | #2,662 | 0.03 |
| 1994 | 66 | #2,086 | 0.04 |
| 1993 | 54 | #2,357 | 0.03 |
| 1992 | 76 | #1,858 | 0.04 |
| 1991 | 45 | #2,676 | 0.02 |
| 1990 | 53 | #2,353 | 0.03 |
| 1989 | 46 | #2,495 | 0.02 |
| 1988 | 53 | #2,164 | 0.03 |
| 1987 | 47 | #2,288 | 0.03 |
| 1986 | 50 | #2,134 | 0.03 |
| 1985 | 33 | #2,829 | 0.02 |
| 1984 | 29 | #3,016 | 0.02 |
| 1983 | 34 | #2,618 | 0.02 |
| 1982 | 32 | #2,864 | 0.02 |
| 1981 | 28 | #3,104 | 0.02 |
| 1980 | 30 | #2,954 | 0.02 |
| 1979 | 18 | #4,123 | 0.01 |
| 1978 | 26 | #3,044 | 0.02 |
| 1977 | 19 | #3,823 | 0.01 |
| 1976 | 20 | #3,453 | 0.01 |
| 1975 | 25 | #2,912 | 0.02 |
| 1974 | 22 | #3,160 | 0.01 |
| 1973 | 19 | #3,396 | 0.01 |
| 1972 | 23 | #2,934 | 0.02 |
| 1971 | 26 | #2,762 | 0.02 |
| 1970 | 25 | #2,816 | 0.01 |
| 1969 | 30 | #2,376 | 0.02 |
| 1968 | 38 | #1,956 | 0.02 |
| 1967 | 32 | #2,100 | 0.02 |
| 1966 | 34 | #1,996 | 0.02 |
| 1965 | 23 | #2,568 | 0.01 |
| 1964 | 52 | #1,584 | 0.03 |
| 1963 | 35 | #1,994 | 0.02 |
| 1962 | 37 | #1,904 | 0.02 |
| 1961 | 48 | #1,633 | 0.02 |
| 1960 | 53 | #1,529 | 0.03 |
| 1959 | 61 | #1,374 | 0.03 |
| 1958 | 48 | #1,547 | 0.02 |
| 1957 | 66 | #1,310 | 0.03 |
| 1956 | 80 | #1,164 | 0.04 |
| 1955 | 77 | #1,139 | 0.04 |
| 1954 | 80 | #1,103 | 0.04 |
| 1953 | 110 | #897 | 0.06 |
| 1952 | 102 | #915 | 0.06 |
| 1951 | 125 | #795 | 0.07 |
| 1950 | 102 | #877 | 0.06 |
| 1949 | 116 | #808 | 0.07 |
| 1948 | 117 | #796 | 0.07 |
| 1947 | 107 | #847 | 0.06 |
| 1946 | 88 | #887 | 0.06 |
| 1945 | 65 | #960 | 0.05 |
| 1944 | 72 | #901 | 0.05 |
| 1943 | 52 | #1,117 | 0.04 |
| 1942 | 36 | #1,358 | 0.03 |
| 1941 | 42 | #1,156 | 0.03 |
| 1940 | 33 | #1,305 | 0.03 |
| 1939 | 34 | #1,283 | 0.03 |
| 1938 | 22 | #1,676 | 0.02 |
| 1937 | 30 | #1,344 | 0.03 |
| 1936 | 27 | #1,429 | 0.03 |
| 1935 | 35 | #1,214 | 0.03 |
| 1934 | 19 | #1,806 | 0.02 |
| 1933 | 18 | #1,875 | 0.02 |
| 1932 | 24 | #1,583 | 0.02 |
| 1931 | 26 | #1,474 | 0.02 |
| 1930 | 33 | #1,335 | 0.03 |
| 1929 | 39 | #1,204 | 0.03 |
| 1928 | 33 | #1,350 | 0.03 |
| 1927 | 39 | #1,269 | 0.03 |
| 1926 | 39 | #1,251 | 0.03 |
| 1925 | 27 | #1,625 | 0.02 |
| 1924 | 58 | #1,009 | 0.05 |
| 1923 | 63 | #925 | 0.05 |
| 1922 | 67 | #893 | 0.06 |
| 1921 | 81 | #819 | 0.07 |
| 1920 | 66 | #900 | 0.06 |
| 1919 | 65 | #873 | 0.06 |
| 1918 | 77 | #818 | 0.07 |
| 1917 | 73 | #809 | 0.07 |
| 1916 | 86 | #731 | 0.08 |
| 1915 | 108 | #633 | 0.11 |
| 1914 | 101 | #559 | 0.13 |
| 1913 | 28 | #1,032 | 0.04 |
| 1912 | 12 | #1,665 | 0.02 |
| 1911 | 15 | #1,206 | 0.04 |
| 1909 | 10 | #1,416 | 0.03 |
| 1908 | 9 | #1,488 | 0.03 |
| 1907 | 5 | #2,214 | 0.02 |
| 1905 | 8 | #1,478 | 0.03 |
| 1904 | 9 | #1,310 | 0.03 |
| 1903 | 8 | #1,383 | 0.03 |
| 1902 | 5 | #1,913 | 0.02 |
| 1901 | 10 | #1,101 | 0.04 |
| 1900 | 12 | #1,136 | 0.04 |
| 1899 | 7 | #1,330 | 0.03 |
| 1898 | 8 | #1,318 | 0.03 |
| 1897 | 5 | #1,663 | 0.02 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Kathlyn a boy’s or a girl’s name?
Kathlyn has been recorded only for girls: SSA lists no boys with the name in 127 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Kathlyn: the SSA national file counts each sex separately.
How many people are named Kathlyn, and how old are they?
3,210 alive in 2026, estimated
That is 62% of the 5,156 Americans ever recorded as Kathlyn. The median Kathlyn alive today is 51 years old; half are between 31 and 73.
The 2020 Census counted 3,632 people named Kathlyn (3,626 women and girls, 6 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 3,356 born in the U.S. The Census count is 8% above that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Silent Generation | 1928-1945 | 219 |
| Baby Boomers | 1946-1964 | 1,130 |
| Generation X | 1965-1980 | 379 |
| Millennials | 1981-1996 | 716 |
| Generation Z | 1997-2012 | 533 |
| Generation Alpha | 2013-2025 | 226 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
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).
Where are babies named Kathlyn born?
The states with the most babies named Kathlyn are California, Texas and Illinois, with 54% of its births recorded by state since 1910.
| State | Since 1910 | Rank, girls | vs. national |
|---|---|---|---|
| California | 362 | not ranked | 0.9× |
| Texas | 237 | #3,115 | 0.7× |
| Illinois | 203 | not ranked | 0.8× |
| New York | 144 | not ranked | 0.3× |
| Michigan | 132 | not ranked | 0.7× |
| Ohio | 89 | not ranked | 0.3× |
| Wisconsin | 47 | not ranked | 0.4× |
| Pennsylvania | 42 | not ranked | 0.1× |
| Florida | 35 | not ranked | 0.3× |
| Iowa | 34 | not ranked | 0.4× |
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Kathlyn with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 8 names spelled alike, given to 722,409 babies since 1880, Kathlyn is the second most given (<1% of them). In 2025 it was given to 28 of their 235 babies (12%), again the second most given.
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.
Names that rose and fell in the same decades as Kathlyn
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
| Name | Recorded | 1890-2025 |
|---|---|---|
| Catheryn | 1,733 |
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Kathlyn and names like it
- Compare Kathlyn and KathleenBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1950sKathlyn peaked in 1951.
- California’s most given namesThe state where SSA recorded the most babies named Kathlyn since 1910.
- The top names of 1951The year the most babies were named Kathlyn.
- The names of the Baby BoomersMost people named Kathlyn alive today were born 1946-1964.
- Names starting with KMost given first.