Finnian is a distinctive boys' name in United States, ranking #1355 in 2005 with 111 recorded births. The name reached its all-time peak in 2016 with 187 births ranking #1059. Since 1996, the popularity has increased by 1,485.7%. In 2005, approximately 1 in every 17,992 boys born was named Finnian. STABLE Recent data shows the name is currently stable.