Kailey is a distinctive girls' name in United States, ranking #656 in 2017 with 454 recorded births. This places Kailey in the top 4% 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 37.8%. In 2017, approximately 1 in every 3,801 girls born was named Kailey. FALLING Recent data shows the name is currently falling.