Caelyn is a distinctive girls' name in United States, ranking #3176 in 2000 with 43 recorded births. The name reached its all-time peak in 2012 with 193 births ranking #1251. Since 1996, the popularity has increased by 230.8%. In 2000, approximately 1 in every 42,232 girls born was named Caelyn. FALLING Recent data shows the name is currently falling.