Kailey is a distinctive girls' name in England & Wales, ranking #4764 in 2011 with 4 recorded births. This places Kailey in the bottom 37% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2003 with 12 births ranking #1628. Since 1996, the popularity has decreased by 20.0%. In 2011, approximately 1 in every 80,328 girls born was named Kailey. RISING Recent data shows the name is currently rising.