Caelyn is a distinctive girls' name in United States, ranking #2027 in 2015 with 97 recorded births. The name reached its all-time peak in 2012 with 193 births ranking #1251. Since 1996, the popularity has increased by 646.2%. In 2015, approximately 1 in every 18,398 girls born was named Caelyn. FALLING Recent data shows the name is currently falling.