Kaithlyn: Name Popularity, History & Rankings (1880

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade	Girls	Per year	Change	Best rank
1880s	–	–	–	–
1890s	–	–	–	–
1900s	–	–	–	–
1910s	–	–	–	–
1920s	–	–	–	–
1930s	–	–	–	–
1940s	–	–	–	–
1950s	–	–	–	–
1960s	–	–	–	–
1970s	–	–	–	–
1980s	18	2	–	#8,962
1990s	62	6	+244%	#7,249
2000s	170	17	+174%	#5,568
2010s	106	11	-38%	#7,141
2020s (to 2025)	33	6	-48%	#11,676

Decade

Girls

Per year

Change

Best rank

1880s

–

1890s

–

1900s

–

1910s

–

1920s

–

1930s

–

1940s

–

1950s

–

1960s

–

1970s

–

1980s

–

#8,962

1990s

+244%

#7,249

2000s

170

+174%

#5,568

2010s

106

-38%

#7,141

2020s (to 2025)

-48%

#11,676

The story of Kaithlyn

Kaithlyn is rare for girls in the United States, ranked #14,014 in 2025 with 6 babies given the name. It is currently declining compared with a decade ago.

Since 1985, 389 American babies have been named Kaithlyn. Its peak came in 2002, when 21 newborns received the name, the signature sound of the 2000s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Kaithlyn stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Kaithlyn?

The median living Kaithlyn is about 19 years old; half are between 12 and 24. An estimated 400 people named Kaithlyn are alive in the United States today.

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Kaithlyn year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year	Girls	Girls rank
2025	6	#14,014
2024	7	#12,765
2023	8	#11,676
2022	–	–
2021	6	#14,314
2020	6	#14,241
2019	6	#14,634
2018	5	#16,822
2017	10	#10,319
2016	8	#12,287
2015	11	#9,784
2014	17	#7,141
2013	14	#8,341
2012	14	#8,418
2011	10	#10,756
2010	11	#10,105
2009	20	#6,681
2008	17	#7,563
2007	16	#7,901
2006	15	#8,046
2005	18	#6,665
2004	17	#6,932
2003	21	#5,687
2002	21	#5,568
2001	14	#7,511
2000	11	#8,852
1995	9	#9,102
1990	8	#9,660
1985	6	#9,868
1980	–	–
1975	–	–
1970	–	–
1965	–	–
1960	–	–
1955	–	–
1950	–	–
1945	–	–
1940	–	–
1935	–	–
1930	–	–
1925	–	–
1920	–	–
1915	–	–
1910	–	–
1905	–	–
1900	–	–
1895	–	–
1890	–	–
1885	–	–
1880	–	–

Frequently asked questions

Quick answers about Kaithlyn, drawn from the same Social Security data as the charts above.

How old is the average Kaithlyn?

The median living Kaithlyn is about 19 years old. Half of all living Kaithlyns are between 12 and 24 years old.

How many people named Kaithlyn are alive today?

An estimated 400 people named Kaithlyn are alive in the United States, based on 389 recorded births and Social Security life tables.

How popular is the name Kaithlyn in 2025?

Kaithlyn ranked #14,014 among girls' names in the United States in 2025, with 6 babies given the name, according to Social Security Administration data.

How many people are named Kaithlyn?

389 babies have been named Kaithlyn in the United States since 1985, based on Social Security card applications.

When was the name Kaithlyn most popular?

Kaithlyn peaked in 2002, when 21 newborns received the name.

Is Kaithlyn a boy or girl name?

Kaithlyn is overwhelmingly a girl's name: 100% of babies with the name.

Is the name Kaithlyn rising or falling?

Kaithlyn is declining, less popular now than a decade ago.

Kaithlyn

Kaithlyn popularity over time

The story of Kaithlyn

How old are people named Kaithlyn?

Kaithlyn year by year

Frequently asked questions

Names like Kaithlyn