Caelyn is a distinctive girls' name in United States, ranking #1367 in 2009 with 174 recorded births. The name reached its all-time peak in 2012 with 193 births ranking #1251. Since 1996, the popularity has increased by 1,238.5%. In 2009, approximately 1 in every 10,557 girls born was named Caelyn. FALLING Recent data shows the name is currently falling.