Finnian is a distinctive boys' name in United States, ranking #1901 in 2002 with 59 recorded births. The name reached its all-time peak in 2016 with 187 births ranking #1059. Since 1996, the popularity has increased by 742.9%. In 2002, approximately 1 in every 32,906 boys born was named Finnian. STABLE Recent data shows the name is currently stable.