How rare is the name Cailin?

3,587 people in the United States have the first name Cailin, about 1 in 84,202. It ranks #4,952 of 53,615 first names in the 2020 Census.

first name

CAILIN

#4,952

of 53,615 first names recorded in the 2020 Census

People
3,587
About
1 in 84,202
This common or more
84.7%
Who bears it

Of the 3,587 people named Cailin, 81.4% reported their origin as White, 7.4% as Hispanic or Latino and 4.9% as two or more races. 97.4% are female. These count how people described themselves on the 2020 Census, not where the name comes from.

Cailin peaked in 1998, when 169 babies got the name.

Births per year, SSA records 1880–2025
19682025
Peak year
1998
Births that year
169
In 2025*
7 ▼96%
Recorded as
almost entirely female

At least 3,743 babies have been given the name since 1968. 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.

Cailin by decade

Among all names given to American babies, its best decade was the 1990s, when it ranked #2,536. The largest share of babies named Cailin, 58.7%, were born between 1997 and 2012, as Generation Z.

1960s#15,5589
1970s#11,63853
1980s#3,833423
1990s#2,5361,092
2000s#2,5681,442
2010s#4,947604
2020s#10,307120
Generation X 1965–802.2%
Millennials 1981–9628.1%
Generation Z 1997–1258.7%
2013 and later11%

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 Cailin is most common

Compared with all babies born in each state since 1910, Cailin has been most common in Massachusetts (3.1×), California (2.2×), and Virginia (1.8×), and least common in North Carolina (0.67×).

1,864 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 Cailin

#4,950 Maryrose · 3,590#4,951 Domenica · 3,589#4,953 Demetri · 3,586#4,953 Denton · 3,586

Spelled almost the same

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

#4,093 Cailyn · 4,718#6,825 Caylin · 2,305#8,938 Calin · 1,590#15,037 Caelin · 772#22,003 Cailen · 456#26,023 Cailan · 361#35,789 Callin · 224#40,051 Caulin · 187

Compare