Finnian is a distinctive boys' name in United States, ranking #1134 in 2015 with 167 recorded births. The name reached its all-time peak in 2016 with 187 births ranking #1059. Since 1996, the popularity has increased by 2,285.7%. In 2015, approximately 1 in every 11,475 boys born was named Finnian. STABLE Recent data shows the name is currently stable.