Jonathyn is a distinctive boys' name in United States, ranking #4516 in 1998 with 15 recorded births. The name reached its all-time peak in 2010 with 22 births ranking #4436. Since 1996, the popularity has increased by 66.7%. In 1998, approximately 1 in every 127,421 boys born was named Jonathyn. FALLING Recent data shows the name is currently falling.