Josilyn is a distinctive girls' name in United States, ranking #3958 in 2016 with 38 recorded births. The name reached its all-time peak in 2006 with 69 births ranking #2613. Since 1996, the popularity has increased by 46.2%. In 2016, approximately 1 in every 46,618 girls born was named Josilyn. FALLING Recent data shows the name is currently falling.