Jonathyn is a distinctive boys' name in United States, ranking #5198 in 2009 with 18 recorded births. The name reached its all-time peak in 2010 with 22 births ranking #4436. Since 1996, the popularity has increased by 100.0%. In 2009, approximately 1 in every 110,184 boys born was named Jonathyn. FALLING Recent data shows the name is currently falling.