Finnian is a distinctive boys' name in United States, ranking #1209 in 2007 with 146 recorded births. The name reached its all-time peak in 2016 with 187 births ranking #1059. Since 1996, the popularity has increased by 1,985.7%. In 2007, approximately 1 in every 14,214 boys born was named Finnian. STABLE Recent data shows the name is currently stable.