Meaning: Its source is Caollaidhe, a Gaelic name meaning "Slender."

Languages: This girl's name is used in English.

Variant Forms: Ceili

Popularity: The name Kaylee ranked 63rd in popularity for females of all ages in a sample of 2000-2003 Social Security Administration statistics and 1800th in popularity for females of all ages in a sample of the 1990 US Census.

This name first made its appearance on state popularity lists of the 1990s, and has been trending upward in usage ever since.