Kayly is a distinctive girls' name in United States, ranking #6445 in 2003 with 18 recorded births. The name reached its all-time peak in 2004 with 32 births ranking #4332. Since 1996, the popularity has increased by 125.0%. In 2003, approximately 1 in every 101,503 girls born was named Kayly. RISING Recent data shows the name is currently rising.