Kailey is a distinctive girls' name in United States, ranking #1420 in 2025 with 153 recorded births. The name reached its all-time peak in 2004 with 1,439 births ranking #228. Since 1996, the popularity has decreased by 79.0%. In 2025, approximately 1 in every 10,505 girls born was named Kailey. FALLING Recent data shows the name is currently falling.