Fynn is a distinctive boys' name in England & Wales, ranking #589 in 2009 with 55 recorded births. The name reached its all-time peak in 2008 with 71 births ranking #489. Since 1996, the popularity has increased by 400.0%. In 2009, approximately 1 in every 6,148 boys born was named Fynn. FALLING Recent data shows the name is currently falling.