Caelyn is a distinctive girls' name in United States, ranking #1311 in 2010 with 179 recorded births. The name reached its all-time peak in 2012 with 193 births ranking #1251. Since 1996, the popularity has increased by 1,276.9%. In 2010, approximately 1 in every 9,929 girls born was named Caelyn. FALLING Recent data shows the name is currently falling.