US Popularity Rank: 2941

Origin: American

Meaning: Slender; Beloved; Sweetheart

Kaylen is a gender-neutral name of American and Gaelic origin. A variant spelling of Kaylin and Kaelyn, this name translates to “slender,” stemming from the Irish word caol. It is thought to ultimately come from the names Caolán or Kayleen, giving it a beautiful definition of “beloved” or “sweetheart,” reminding baby of how much they are loved each time their name is called.