Kayly is a distinctive girls' name in United States, ranking #6509 in 2010 with 20 recorded births. The name reached its all-time peak in 2004 with 32 births ranking #4332. Since 1996, the popularity has increased by 150.0%. In 2010, approximately 1 in every 88,866 girls born was named Kayly. RISING Recent data shows the name is currently rising.