Kailyn
Kailyn was given to 110 girls in 2025, #1,825 among girls’ names; 14,351 Americans have been recorded with it since 1981 (Social Security Administration, published May 2026).
An estimated 14,200 Americans named Kailyn and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 18 years old and half are between 13 and 25.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Kailyn by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Kailyn mean?
Wiktionary, English section
Kailyn is “a female given name.”
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Kailyn?
#1,825 among girls’ names, 2025
Kailyn fell from #659 in 2015 to #1,825 in 2025 among girls’ names; its share of girls born fell from 0.24 to 0.07 per 1,000.
799 babies in 2011, the peak
Kailyn peaked in 2011, when 799 babies were given it (793 girls, #397 among girls’ names). The 118 births of 2025 (girls and boys) are 15% of that peak.
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2025 | 110 | #1,825 | 0.07 |
| 2024 | 133 | #1,580 | 0.08 |
| 2023 | 155 | #1,443 | 0.10 |
| 2022 | 158 | #1,425 | 0.10 |
| 2021 | 180 | #1,282 | 0.11 |
| 2020 | 193 | #1,196 | 0.12 |
| 2019 | 247 | #1,038 | 0.15 |
| 2018 | 264 | #992 | 0.16 |
| 2017 | 298 | #899 | 0.17 |
| 2016 | 355 | #803 | 0.20 |
Every recorded year (45)
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2015 | 436 | #659 | 0.24 |
| 2014 | 606 | #512 | 0.34 |
| 2013 | 609 | #492 | 0.35 |
| 2012 | 623 | #493 | 0.35 |
| 2011 | 793 | #397 | 0.45 |
| 2010 | 696 | #443 | 0.39 |
| 2009 | 706 | #447 | 0.38 |
| 2008 | 706 | #447 | 0.37 |
| 2007 | 663 | #491 | 0.34 |
| 2006 | 626 | #493 | 0.33 |
| 2005 | 583 | #511 | 0.32 |
| 2004 | 533 | #533 | 0.29 |
| 2003 | 499 | #554 | 0.27 |
| 2002 | 438 | #589 | 0.24 |
| 2001 | 399 | #627 | 0.22 |
| 2000 | 431 | #593 | 0.24 |
| 1999 | 389 | #619 | 0.22 |
| 1998 | 355 | #651 | 0.20 |
| 1997 | 306 | #704 | 0.18 |
| 1996 | 295 | #715 | 0.17 |
| 1995 | 246 | #806 | 0.14 |
| 1994 | 246 | #821 | 0.14 |
| 1993 | 212 | #907 | 0.12 |
| 1992 | 160 | #1,111 | 0.09 |
| 1991 | 120 | #1,359 | 0.06 |
| 1990 | 93 | #1,606 | 0.05 |
| 1989 | 103 | #1,433 | 0.06 |
| 1988 | 70 | #1,791 | 0.04 |
| 1987 | 57 | #1,970 | 0.03 |
| 1986 | 40 | #2,484 | 0.02 |
| 1985 | 29 | #3,118 | 0.02 |
| 1984 | 17 | #4,398 | 0.01 |
| 1983 | 16 | #4,561 | 0.01 |
| 1982 | 11 | #6,105 | 0.01 |
| 1981 | 6 | #9,631 | under 0.01 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Kailyn a boy’s or a girl’s name?
Kailyn has been given almost only to girls: 140 boys in 45 years of records.
Girls and boys named Kailyn: the SSA national file counts each sex separately.
How many people are named Kailyn, and how old are they?
14,200 alive in 2026, estimated
That is 99% of the 14,351 Americans ever recorded as Kailyn. The median Kailyn alive today is 18 years old; half are between 13 and 25.
The 2020 Census counted 11,777 people named Kailyn (11,657 women and girls, 120 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 13,297 born in the U.S. The Census count is 11% below that prediction. Possible reasons: people who give a short form or another name to the Census, and a survival estimate that can run high.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Millennials | 1981-1996 | 1,680 |
| Generation Z | 1997-2012 | 8,720 |
| Generation Alpha | 2013-2025 | 3,800 |
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 Kailyn born?
The states with the most babies named Kailyn are Texas, California and Florida, with 57% of its births recorded by state in 2025.
| State | Births 2025 | Rank, girls | vs. national |
|---|---|---|---|
| Texas | 15 | #1,576 | 0.9× |
| California | 13 | #1,696 | 0.7× |
| Florida | 8 | #1,608 | 1.1× |
| Georgia | 6 | #1,453 | 1.3× |
| North Carolina | 6 | #1,353 | 1.1× |
| Illinois | 5 | #1,512 | 0.8× |
| Virginia | 5 | #1,275 | 1.0× |
| South Carolina | 5 | #843 | 1.4× |
Where Kailyn is more common than its national share predicts
Relative to its national share, Kailyn is most over-represented in Louisiana: since 1981 it was given 1.8 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 Kailyn 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 96,132 babies since 1880, Kailyn is the third most given (15% of them). In 2025 it was given to 118 of their 747 babies (16%), the fourth 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 Kailyn
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 Kailyn and names like it
- Compare Kailyn and KaylinBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2010sKailyn peaked in 2011.
- California’s most given namesThe state where SSA recorded the most babies named Kailyn since 1910.
- The top names of 2011The year the most babies were named Kailyn.
- The names of Generation ZMost people named Kailyn alive today were born 1997-2012.
- Names starting with KMost given first.