Pure or keeper of the keys
Kailene is a modern American elaboration of the name Kay or Kaia, often influenced by the Irish name Kayley or the Greek name Katherine. It combines the 'Kai' prefix with the popular 'lene' suffix, suggesting qualities of purity or guardianship.
About 5 girls were named Kailene in 2025.
US births per 5-year period, 1990–present (SSA data).
