Fynn is a distinctive boys' name in England & Wales, ranking #594 in 2011 with 58 recorded births. The name reached its all-time peak in 2008 with 71 births ranking #489. Since 1996, the popularity has increased by 427.3%. In 2011, approximately 1 in every 5,963 boys born was named Fynn. FALLING Recent data shows the name is currently falling.