Jonathyn is a distinctive boys' name in United States, ranking #4621 in 2008 with 21 recorded births. The name reached its all-time peak in 2010 with 22 births ranking #4436. Since 1996, the popularity has increased by 133.3%. In 2008, approximately 1 in every 97,140 boys born was named Jonathyn. FALLING Recent data shows the name is currently falling.