Katlyn
Katlyn was given to 12 girls in 2025, #8,610 among girls’ names; 18,438 Americans have been recorded with it since 1979 (Social Security Administration, published May 2026).
An estimated 18,100 Americans named Katlyn and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 29 years old and half are between 25 and 33.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Katlyn by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Katlyn?
#8,610 among girls’ names, 2025
Katlyn fell from #3,277 in 2015 to #8,610 in 2025 among girls’ names; its share of girls born fell from 28.0 to 7.5 per million.
1,260 babies in 1995, the peak
Katlyn peaked in 1995, when 1,260 girls were given it, #223 among girls’ names. The 12 births of 2025 are under 1% of that peak.
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2025 | 12 | #8,610 | 0.01 |
| 2024 | 23 | #5,525 | 0.01 |
| 2023 | 21 | #5,847 | 0.01 |
| 2022 | 15 | #7,452 | 0.01 |
| 2021 | 8 | #11,631 | under 0.01 |
| 2020 | 11 | #9,232 | 0.01 |
| 2019 | 27 | #4,972 | 0.02 |
| 2018 | 26 | #5,074 | 0.02 |
| 2017 | 19 | #6,408 | 0.01 |
| 2016 | 30 | #4,678 | 0.02 |
Every recorded year (47)
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2015 | 50 | #3,277 | 0.03 |
| 2014 | 60 | #2,867 | 0.03 |
| 2013 | 66 | #2,674 | 0.04 |
| 2012 | 83 | #2,275 | 0.05 |
| 2011 | 118 | #1,743 | 0.07 |
| 2010 | 145 | #1,540 | 0.08 |
| 2009 | 195 | #1,256 | 0.11 |
| 2008 | 217 | #1,181 | 0.11 |
| 2007 | 275 | #978 | 0.14 |
| 2006 | 348 | #788 | 0.18 |
| 2005 | 457 | #619 | 0.25 |
| 2004 | 515 | #553 | 0.28 |
| 2003 | 566 | #505 | 0.31 |
| 2002 | 694 | #418 | 0.39 |
| 2001 | 848 | #352 | 0.47 |
| 2000 | 962 | #330 | 0.53 |
| 1999 | 1,071 | #290 | 0.60 |
| 1998 | 1,183 | #262 | 0.67 |
| 1997 | 1,232 | #242 | 0.71 |
| 1996 | 1,186 | #236 | 0.68 |
| 1995 | 1,260 | #223 | 0.72 |
| 1994 | 1,132 | #243 | 0.63 |
| 1993 | 1,066 | #260 | 0.59 |
| 1992 | 945 | #297 | 0.51 |
| 1991 | 864 | #312 | 0.46 |
| 1990 | 779 | #343 | 0.41 |
| 1989 | 615 | #401 | 0.33 |
| 1988 | 505 | #448 | 0.28 |
| 1987 | 294 | #641 | 0.17 |
| 1986 | 201 | #829 | 0.12 |
| 1985 | 141 | #1,052 | 0.08 |
| 1984 | 72 | #1,573 | 0.04 |
| 1983 | 34 | #2,619 | 0.02 |
| 1982 | 24 | #3,473 | 0.01 |
| 1981 | 19 | #4,068 | 0.01 |
| 1980 | 12 | #5,692 | 0.01 |
| 1979 | 7 | #8,452 | under 0.01 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Katlyn a boy’s or a girl’s name?
Katlyn has been given almost only to girls: 5 boys in 47 years of records.
Girls and boys named Katlyn: the SSA national file counts each sex separately.
How many people are named Katlyn, and how old are they?
18,100 alive in 2026, estimated
That is 98% of the 18,438 Americans ever recorded as Katlyn. The median Katlyn alive today is 29 years old; half are between 25 and 33.
The 2020 Census counted 17,216 people named Katlyn (17,177 women and girls, 39 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 18,112 born in the U.S. The Census count is 5% below that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Generation X | 1965-1980 | 18 |
| Millennials | 1981-1996 | 8,940 |
| Generation Z | 1997-2012 | 8,800 |
| Generation Alpha | 2013-2025 | 366 |
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 Katlyn born?
The states with the most babies named Katlyn are Texas, Ohio and Pennsylvania, with 19% of its births recorded by state since 1910.
| State | Since 1910 | Rank, girls | vs. national |
|---|---|---|---|
| Texas | 1,097 | not ranked | 0.7× |
| Ohio | 1,085 | not ranked | 1.4× |
| Pennsylvania | 983 | not ranked | 1.3× |
| California | 924 | not ranked | 0.3× |
| North Carolina | 837 | not ranked | 1.6× |
| Florida | 772 | not ranked | 0.8× |
| Illinois | 769 | not ranked | 0.9× |
| Michigan | 742 | not ranked | 1.1× |
| New York | 717 | not ranked | 0.6× |
| Georgia | 716 | not ranked | 1.3× |
Where Katlyn is more common than its national share predicts
Relative to its national share, Katlyn is most over-represented in West Virginia: since 1979 it was given 2.0 times as often there as its national share each year would predict.
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 Katlyn 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 485,664 babies since 1880, Katlyn is the sixth most given (3.8% of them). In 2025 it was given to 12 of their 787 babies (1.5%), the seventh most given that year.
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 Katlyn
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
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 Katlyn and names like it
- Compare Katlyn and KaitlynBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1990sKatlyn peaked in 1995.
- Texas’s most given namesThe state where SSA recorded the most babies named Katlyn since 1910.
- The top names of 1995The year the most babies were named Katlyn.
- The names of the MillennialsMost people named Katlyn alive today were born 1981-1996.
- Names starting with KMost given first.