Girl’s name · Irish, English

Kailey

How to say it: KAY-lee · /ˈkeɪli/

Variant of Kaylee/Kayleigh; from Irish 'caol' meaning 'slender' combined with Old English 'leah' meaning 'clearing'.

Kailey was the 127th most popular girls’ name in the United States in 2025, given to 153 babies (Social Security Administration). Its busiest decade was the 2000s, its births are down about 64% in ten years, and it is projected to slip to #215 by 2030.

Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures

#127for girls in 2025
1 in 1,306US babies
153born in 2025
#215projected for 2030
2000sits peak decade
1 in 55chance a classmate shares it

Key facts

Key facts about Kailey
Rank among girls’ names, 2025#127
Babies born in 2025153
Share of births1 in 1,306
Peak decade2000s
Change over 10 years−64%
Projected rank for 2030 (estimate)#215
In France, 2025#323 among girls’ names, 0 births

Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.

Its life, decade by decade

Most of Kailey’s story belongs to recent decades, with a high in the 2000s. Far below that crest today, it is likely to drift lower.

1900195020002020–25
Peak: 641 per million births, 2000s.

What goes with it

Light and gentle, its two syllables mix softness with crisp edges. Rylee makes a close companion.

In the classroom

In a class of 25 children born in 2025, the chance that another child is called Kailey is about 1 in 55.

Around the world

This spelling is used in English, Irish.

In France: #323 for girls in 2025.

Famous people named Kailey

From Wikidata and Wikipedia

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