Jonathyn is a distinctive boys' name in United States, ranking #12991 in 2015 with 5 recorded births. The name reached its all-time peak in 2010 with 22 births ranking #4436. Since 1996, the popularity has decreased by 44.4%. In 2015, approximately 1 in every 383,252 boys born was named Jonathyn. FALLING Recent data shows the name is currently falling.