Finnian is a distinctive boys' name in United States, ranking #1333 in 2006 with 123 recorded births. The name reached its all-time peak in 2016 with 187 births ranking #1059. Since 1996, the popularity has increased by 1,657.1%. In 2006, approximately 1 in every 16,708 boys born was named Finnian. STABLE Recent data shows the name is currently stable.