Caelyn is a distinctive girls' name in United States, ranking #1339 in 2011 with 173 recorded births. The name reached its all-time peak in 2012 with 193 births ranking #1251. Since 1996, the popularity has increased by 1,230.8%. In 2011, approximately 1 in every 10,166 girls born was named Caelyn. FALLING Recent data shows the name is currently falling.