Finnian is a distinctive boys' name in England & Wales, ranking #657 in 1998 with 26 recorded births. The name reached its all-time peak in 2021 with 33 births ranking #907. Since 1996, the popularity has increased by 30.0%. In 1998, approximately 1 in every 11,941 boys born was named Finnian. STABLE Recent data shows the name is currently stable.