Finnian is a distinctive boys' name in United States, ranking #2395 in 2001 with 41 recorded births. The name reached its all-time peak in 2016 with 187 births ranking #1059. Since 1996, the popularity has increased by 485.7%. In 2001, approximately 1 in every 47,386 boys born was named Finnian. STABLE Recent data shows the name is currently stable.