Caelyn is a distinctive girls' name in United States, ranking #1737 in 2007 with 125 recorded births. The name reached its all-time peak in 2012 with 193 births ranking #1251. Since 1996, the popularity has increased by 861.5%. In 2007, approximately 1 in every 15,380 girls born was named Caelyn. FALLING Recent data shows the name is currently falling.