Finnian is a distinctive boys' name in United States, ranking #1431 in 2021 with 127 recorded births. The name reached its all-time peak in 2016 with 187 births ranking #1059. Since 1996, the popularity has increased by 1,714.3%. In 2021, approximately 1 in every 13,766 boys born was named Finnian. STABLE Recent data shows the name is currently stable.