Jonathyn is a distinctive boys' name in United States, ranking #4779 in 2001 with 16 recorded births. The name reached its all-time peak in 2010 with 22 births ranking #4436. Since 1996, the popularity has increased by 77.8%. In 2001, approximately 1 in every 121,427 boys born was named Jonathyn. FALLING Recent data shows the name is currently falling.