Kailey is a distinctive girls' name in United States, ranking #847 in 2020 with 322 recorded births. This places Kailey in the top 5% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2004 with 1,439 births ranking #228. Since 1996, the popularity has decreased by 55.9%. In 2020, approximately 1 in every 5,017 girls born was named Kailey. FALLING Recent data shows the name is currently falling.