Jonathyn is a distinctive boys' name in United States, ranking #8637 in 2000 with 7 recorded births. The name reached its all-time peak in 2010 with 22 births ranking #4436. Since 1996, the popularity has decreased by 22.2%. In 2000, approximately 1 in every 280,562 boys born was named Jonathyn. FALLING Recent data shows the name is currently falling.