Cailynn is a distinctive girls' name in United States, ranking #2687 in 2012 with 66 recorded births. The name reached its all-time peak in 2009 with 68 births ranking #2679. Since 1996, the popularity has increased by 340.0%. In 2012, approximately 1 in every 26,678 girls born was named Cailynn. FALLING Recent data shows the name is currently falling.