How rare is the name Cailyn?

4,718 people in the United States have the first name Cailyn, about 1 in 64,017. It ranks #4,093 of 53,615 first names in the 2020 Census.

first name

CAILYN

#4,093

of 53,615 first names recorded in the 2020 Census

People
4,718
About
1 in 64,017
This common or more
83.5%
Who bears it

Of the 4,718 people named Cailyn, 66.6% reported their origin as White, 14.3% as Black and 8.9% as Hispanic or Latino. 99.4% are female. These count how people described themselves on the 2020 Census, not where the name comes from.

Cailyn peaked in 2009, when 401 babies got the name.

Births per year, SSA records 1880–2025
19792025
Peak year
2009
Births that year
401
In 2025*
45 ▼89%
Recorded as
almost entirely female

At least 5,554 babies have been given the name since 1979. Years SSA withheld, because fewer than 5 were born, are skipped rather than drawn as zero. * 2025 is the newest year published and it undercounts: a card application is filed some time after a birth.

Cailyn by decade

Among all names given to American babies, its best decade was the 2000s, when it ranked #1,771. The largest share of babies named Cailyn, 67.7%, were born between 1997 and 2012, as Generation Z.

1970s#24,5405
1980s#8,913120
1990s#2,953857
2000s#1,7712,445
2010s#2,3821,791
2020s#5,189336
Generation X 1965–800.1%
Millennials 1981–969.7%
Generation Z 1997–1267.7%
2013 and later22.5%

Rank counts both sexes together, among every name SSA recorded that decade; the number under it is births. The 2020s run only to 2025. Generation years follow Pew Research Center, which has not named a generation after 2012.

Where Cailyn is most common

Compared with all babies born in each state since 1910, Cailyn has been most common in Florida (2.3×), Georgia (1.9×), and North Carolina (1.7×), and least common in New Jersey (0.58×).

3,765 births recorded by state, 1910–2025. 2× means twice as common as nationally. States with fewer than 30 such births are left blank, and SSA withholds any year with fewer than 5 in a state, so small states read low.

Either side of Cailyn

#4,090 Meera · 4,723#4,092 Dallin · 4,719#4,094 Wilder · 4,715#4,095 Delfino · 4,714

Spelled almost the same

8 first names in the 2020 Census spelled within a letter or two of Cailyn, most common first.

#4,952 Cailin · 3,587#7,297 Caelyn · 2,105#13,386 Cailynn · 904#14,563 Calyn · 808#21,719 Caylyn · 465#21,754 Callyn · 464#22,003 Cailen · 456#26,023 Cailan · 361

Compare