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Home › Baby Names Directory › Kailey

Kailey

♀ Girl

Pronounced KAY-lee /ˈkeɪ.liː/Low

Meaning: Slender, fair; variant of KayleighLow

In 30 seconds: Kailey is a spelling variant of Kayleigh, combining the Gaelic element caol meaning slender with the popular -ley suffix. One of several Kay- name variants popular in the US from the 1980s onward.
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Origin LowGaelic, English
MeaningSlender, fair; variant of Kayleigh
U.S. rank (2025)#1420 ↘ Falling
2025 U.S. births153 girls (0.01% of U.S. girls)
Peak year2004
Total births (all-time)≈ 27,242

Popularity in the U.S. · SSA data

peak 200419702025

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Kailey belongs to the family of names built on the Gaelic element caol (slender, fair) combined with an anglicized suffix. The most common form Kaylee peaked in the United States around 2010, and Kailey is one of many popular spelling variations.

The proliferation of Kaylee-type spellings reflects American parents' desire to personalize popular names. Kailey is a recognizable and visually appealing variant that reads cleanly and is easy to pronounce.

Did you know? There are at least a dozen popular spelling variants of this name, including Kaylee, Kayleigh, Kailey, Kayley, Caylee, and Caley — making it one of the most orthographically varied names in American usage.
Overall data confidence 90%
Behind the Name: Kaylee

Variations

KayleeKayleighCayleeKayleyKylee

Nicknames

KayKai

Famous Bearers

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If you like Kailey…

Kaylee— Most common spelling of same name
Kayleigh— Gaelic spelling variant
Hailey— Same -ley ending, similar popularity arc
Bailey— Two-syllable -ley name

Explore names like Kailey

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Frequently Asked

What does Kailey mean?

Kailey is a variant of Kayleigh, from the Gaelic caol meaning slender or fair, combined with the -ley suffix.

How do you pronounce Kailey?

Kailey is pronounced KAY-lee, exactly like Kaylee.

How many ways can you spell Kailey?

There are many spellings including Kaylee, Kayleigh, Caylee, Kayley, Kylee, and Caley.

What are nicknames for Kailey?

Nicknames for Kailey include Kay and Kai.

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