Finnian is a distinctive boys' name in United States, ranking #1059 in 2016 with 187 recorded births. The name reached its all-time peak in 2016 with 187 births ranking #1059. Since 1996, the popularity has increased by 2,571.4%. In 2016, approximately 1 in every 10,146 boys born was named Finnian. STABLE Recent data shows the name is currently stable.