Finnian is a distinctive boys' name in United States, ranking #1690 in 2003 with 73 recorded births. The name reached its all-time peak in 2016 with 187 births ranking #1059. Since 1996, the popularity has increased by 942.9%. In 2003, approximately 1 in every 27,058 boys born was named Finnian. STABLE Recent data shows the name is currently stable.