Kayly is a distinctive girls' name in United States, ranking #5158 in 2009 with 28 recorded births. The name reached its all-time peak in 2004 with 32 births ranking #4332. Since 1996, the popularity has increased by 250.0%. In 2009, approximately 1 in every 65,603 girls born was named Kayly. RISING Recent data shows the name is currently rising.