Kayley is a girl name with a modern feel, drawn from real birth records. Below you'll find what Kayley means and where it comes from, plus how many babies have been named Kayley across the United States, UK, Ireland and New Zealand, how popular Kayley has been over the decades, and the year it peaked.
Kayley is a girl name of Irish (Gaelic) origin meaning “slender, or descendant of Caollaidhe”. A variant of Kayley, from an Irish surname.
| Country | Births on record |
|---|---|
| United States since 1880 | 8,586 births |
| England & Wales since 1996 | 1,267 births |
| Scotland since 1974 | 273 births |
| Northern Ireland since 1997 | 21 births |
| Ireland since 1964 | 123 births |
Counts come from official national birth-registration statistics: U.S. Social Security Administration, England & Wales (Office for National Statistics), Scotland (National Records of Scotland), Northern Ireland (NISRA), Ireland (Central Statistics Office) and New Zealand (Dept. of Internal Affairs). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Kayley per year, United States (1977 to 2025). United States peaked in 1999 (461/yr) · England & Wales peaked in 1996 (127/yr) · Scotland peaked in 1997 (16/yr) · Ireland peaked in 2005 (11/yr) · Northern Ireland peaked in 2006 (8/yr).
Kayley is an uncommon baby name in the United States. It was most common in 1999, when it ranked #1,024 nationally (given to 570 babies that year).
Kyle · Kelly · Kayla · Kaylee · Kylie · Gayle · Kelley · Kylee
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