Cailynn is a distinctive girls' name in United States, ranking #2895 in 2014 with 59 recorded births. The name reached its all-time peak in 2009 with 68 births ranking #2679. Since 1996, the popularity has increased by 293.3%. In 2014, approximately 1 in every 30,270 girls born was named Cailynn. FALLING Recent data shows the name is currently falling.