Jailynn is a distinctive boys' name in United States, ranking #11415 in 2011 with 6 recorded births. This places Jailynn in the bottom 21% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2009 with 8 births ranking #9333. In 2011, approximately 1 in every 316,498 boys born was named Jailynn. FALLING Recent data shows the name is currently falling.